Fred Naggs - Academia.edu (original) (raw)

Papers by Fred Naggs

Research paper thumbnail of Concatenated DNA sequence alignments of CO1, ND1 and 16S rRNA for the land snail Corilla

Four concatenated alignment (including indels) of three mitochondrial genes (CO1, ND1 and 16S rRN... more Four concatenated alignment (including indels) of three mitochondrial genes (CO1, ND1 and 16S rRNA) for the Sri Lankan land snail Corilla (Pulmonata: Corillidae). See: Raheem, D.C., Breugelmans, K., Wade, C.M., Naggs, F.C., Backeljau, T., In press, Exploring the shell-based taxonomy of the Sri Lankan land snail Corilla H. and A. Adams, 1855 (Pulmonata: Corillidae) using mitochondrial DNA, Molecular Phylogenetics and Evolution. All datasets aligned using MAFFT v. 7 (Katoh & Standley, 2013, Molecular Biology and Evolution, 30, 772-780). 1) File name: 1_Corilla47seq.fas Concatenated alignment of CO1, ND1 and 16S rRNA for Corilla (42 samples) and 5 other land snails. Concatenated alignment (including indels) of three mitochondrial genes (CO1, ND1 and 16S rRNA) for the land pulmonate Corilla (42 samples) and 5 other stylommatophoran taxa (Albinaria caerulea, Cornu aspersum, Halongella schlumbergeri, Lissachatina fulica and Sculptaria damaraensis damaraensis). CO1 = 1-459 by (commencing at codon position 2); ND1 = 460-891 bp (commencing at codon position 3); 16S = 892-2166 bp. 2) File name: 2_Corilla45seq.fas Concatenated alignment of CO1, ND1 and 16S rRNA for Corilla (40 samples) and 5 other land snails. Concatenated alignment (including indels) of three mitochondrial genes (CO1, ND1 and 16S rRNA) for the land pulmonate Corilla (40 samples) and 5 other stylommatophoran taxa (Albinaria caerulea, Cornu aspersum, Halongella schlumbergeri, Lissachatina fulica and Sculptaria damaraensis damaraensis). CO1 = 1-459 by (commencing at codon position 2); ND1 = 460-891 bp (commencing at codon position 3); 16S = 892-2163 bp. 3) File name: 3_Corilla42seq.fas Concatenated alignment of CO1, ND1 and 16S rRNA for Corilla (42 samples). Concatenated alignment (including indels) of three mitochondrial genes (CO1, ND1 and 16S rRNA) for the land pulmonate Corilla (42 samples). CO1 = 1-459 by (commencing at codon position 2); ND1 = 460-899 bp (commencing at codon position 3); 16S = 900-1361 bp. 4) File name: 4_Corilla40seq.fas Concatenat [...]

Research paper thumbnail of Fine-scale geographical sampling and molecular characterization of the giant African land snail in its invasive range in Asia shows low genetic diversity, new haplotypes and the emergence of another haplotype from the Indian Ocean Islands

Biological Journal of The Linnean Society, Sep 7, 2022

Native to East Africa, the giant African snail Lissachatina [=Achatina] fulica (Bowdich, 1822) is... more Native to East Africa, the giant African snail Lissachatina [=Achatina] fulica (Bowdich, 1822) is a tropical crop pest and one of the world's top 100 invasive species. It is now present in at least 52 countries worldwide, with an actively expanding range. Lissachatina fulica was first introduced to India in 1847, but subsequent arrivals in India and local patterns of spread remain unclear. This study uses the 16S rRNA gene to identify the extent of genetic variation in India by sampling Indian populations and comparing them with published sequence data. A total of 307 snails were collected from 178 localities in India and from a single locality in the UAE, and the 16S rRNA gene was amplified and sequenced. Eight haplotypes were identified from India of which four are newly recognized. The new haplotypes identified in this study have increased the number of L. fulica 16S rRNA haplotypes from 19 to 23. Examination of haplotype and nucleotide diversities revealed that genetic variation is low in India, the UAE and across Asia as a whole. The number of haplotypes was higher in India when compared to other invasive regions but all of the Asian haplotypes appear to be closely related to the most common haplotypes in the Indian Ocean Islands. Heavy trade between the snail-infested and native-range countries suggests that the variation observed in India might be traced back to its native range, but the lack of sampling and paucity of sequences from East Africa currently prevents a comparison. Tracing back the emergent haplotypes by additional sampling could throw more light on the spread of L. fulica.

Research paper thumbnail of A tale of two islands

Research paper thumbnail of Redescription of<i>Acmella tersa</i>(Benson, 1853), the type species of<i>Acmella</i>W.T. Blanford, 1869 (Gastropoda: Assimineidae), from Meghalaya, Northeast India

Molluscan Research, Oct 2, 2021

The type species of the assimineid genus Acmella W.T. Blanford, 1869 is Cyclostoma tersum Benson,... more The type species of the assimineid genus Acmella W.T. Blanford, 1869 is Cyclostoma tersum Benson, 1853, originally described from 'Musmai' [Mawsmai], Meghalaya, Northeast India. No specimens from Benson's type series can be traced, and contemporary shells collected from the type locality in museum collections are extremely worn. It has therefore been impossible to examine shell microsculpture, an important taxonomic character in the diagnosis of species of Assimineidae, using museum specimens. In order to provide better diagnostic characters for the genus Acmella, we redescribe and illustrate Acmella tersa from newly collected specimens, one of which is designated as the neotype. We also provide a list of all known species attributed to Acmella.

Research paper thumbnail of Tortaxis Pilsbry, 1906 and Allopeas Baker, 1935 (Mollusca, Gastropoda): proposed conservation by the designation of a neotype for Achatina erecta Benson, 1842

The Bulletin of zoological nomenclature, 1992

Research paper thumbnail of On the proposed conservation of the specific name of Bulinus wrighti Mandahl-Barth, 1965 (Mollusca, Gastropoda)

The Bulletin of zoological nomenclature, 2000

Research paper thumbnail of Bulinus wrighti Mandahl-Barth, 1965 (Mollusca, Gastropoda): proposed conservation of the specific name

The Bulletin of zoological nomenclature, 1999

The purpose of this application is to conserve the specific name of Bulinus wrighii Mandahl-Barth... more The purpose of this application is to conserve the specific name of Bulinus wrighii Mandahl-Barth, 1965 for a freshwater snail (family planorbidae) from Saudi Arabia, Oman and Yemen which is an often-cited intermediate host for schistosome parasites of medical and veterinary importance. The name is a junior primary homonym o(Bulinus nrightii Sowerby, 1853 which relates to a large West African land snail (family achatinidae). The specific name of the latter has been used for nearly 150 years but since 1855 the taxon has been placed in Pseudachatina Albers, 1850, and not in Bulinus O.F. Miiller, 1781. Neither Pseudachatina nrightii (Sov/erhy, 1853) nor Bulinus wrighti Mandahl-Barth. 1965 has a junior synonym. Keywords.

Research paper thumbnail of Phylogenetics and species delimitations of the operculated land snail Cyclophorus volvulus (Gastropoda: Cyclophoridae) reveal cryptic diversity and new species in Thailand

Scientific Reports, 2019

Recent conceptual and practical advances in phylogenetic species delimitation have enabled progre... more Recent conceptual and practical advances in phylogenetic species delimitation have enabled progressively robust biodiversity studies. Delimiting species in widespread taxa is an intriguing problem; the edible operculated land snailCyclophorus volvulus(Müller, 1774) is a good example since it shows a high degree of shell and color variation along with a widespread distribution throughout Thailand. Taxonomic boundaries forC.volvuluswere examined and clarified using a combined morphological and phylogenetic approach, the latter of which was based on both nuclear and mitochondrial gene sequences. Moreover, three species delimitation analyses were applied: Poisson tree processes (PTP), automatic barcode gap discovery (ABGD), and generalized mixed Yule-coalescent (GMYC). All phylogenetic trees revealed thatC.volvuluswas polyphyletic and comprised of three clades that coincided with their geographic distribution. The three species delimitation analyses concurred with the phylogenies and fo...

Research paper thumbnail of Report of Lissachatina fulica (Bowdich, 1822) (Stylommatophora: Achatinidae) in rubber plantations of Western Ghats, Kerala

Entomon, Dec 31, 2021

The giant African snail Lissachatina fulica (Bowdich, 1822) is reported as a pest in rubber plant... more The giant African snail Lissachatina fulica (Bowdich, 1822) is reported as a pest in rubber plantations adjoining forest fringes in the Western Ghats region of Kerala. The snail was causing damage to rubber (Hevea brasiliensis) and nutmeg (Myristica fragrans) trees, by feeding on rubber latex and nutmeg twigs and leaves. L. fulica infestation on M. fragrans is a new record. The snail infestation in rubber plantations is the first report from the Western Ghats region in Kerala.

Research paper thumbnail of Evolutionary relationships among the Pulmonate land snails and slugs (Pulmonata, Stylommatophora)

Biological Journal of The Linnean Society, Apr 18, 2006

We have incorporated an additional 56 species of land snails and slugs in our ribosomal (r) RNA m... more We have incorporated an additional 56 species of land snails and slugs in our ribosomal (r) RNA molecular phylogeny. The new taxa include representatives of several important groups. The molecular tree now includes 160 species of stylommatophoran land snails and slugs in 144 genera in 61 families. In the rDNA tree, the Stylommatophora are principally divided into an 'achatinoid' and a 'non-achatinoid' clade. Within these clades, several major land snail groups, including the Orthurethra, Elasmognatha, Limacoidea, and Helicoidea, are supported. Overall, the rDNA molecular phylogeny has remained stable following the incorporation of the additional taxa, with these additions having little impact on the major evolutionary patterns in the tree. Taxonomic coverage of the Orthurethra, Orthalicidae, Camaenidae, and Bradybaenidae is increased significantly. The camaenids and bradybaenids form a complex, and both appear to be paraphyletic. Several families of uncertain affinity, such as the Sagdidae and Thyrophorellidae, are included for the first time. The Sagdidae are shown to belong to the Helicoidea, and the Thyrophorellidae to the Achatinoidea.

Research paper thumbnail of Comments On The Proposed Conservation Of Hydrobia Hartmann, 1821 Acuta With A Neotype; Proposed Designation Of Turbo Ventrosus Montagu, 1803 As The Type Species Of Ventrosia Radoman, 1977; And Proposed Emendation Of Spelling Of Hydrobiina Mulsant, 1844 (Insecta, Coleoptera) To Hydrobiusina, So Re...

The Bulletin of zoological nomenclature, 1999

Comments on the proposed conservation of Hydrobia Hartmann, 1821 (IMollusca, Gastropoda) and Cydo... more Comments on the proposed conservation of Hydrobia Hartmann, 1821 (IMollusca, Gastropoda) and Cydostoma acutum Draparnaud, 1805 (currently Hydrohia acuta) by the replacement of the lectotype of H. acuta with a neotype; proposed designation of Turbo ventrosus Montagu, 1803 as the type species of Ventrosia Radoman, 1977; and proposed emendation of spelling of hydrobiina Mulsant, 1844 (Insecta, Coleoptera) to hvdrobiusina, so removing the homonymy with hvdrobiidae Troschel, 1857 (Mollusca)

Research paper thumbnail of Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description... 45 Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species

zookeys.401.7075 Twelve new species of the streptaxid snail genus Discartemon Pfeiffer, 1856 are ... more zookeys.401.7075 Twelve new species of the streptaxid snail genus Discartemon Pfeiffer, 1856 are described from southern

Research paper thumbnail of tale of two islands. The reality of large-scale extinction in the early stages of the Anthropocene: a lack of awareness and appropriate action

The Journal of Population and Sustainability, Dec 1, 2019

Research paper thumbnail of Saving living diversity in the face of the unstoppable 6th mass extinction: a call for urgent international action

The Journal of Population and Sustainability, May 1, 2017

The global scale and impact of current and increasing human population size is incompatible with ... more The global scale and impact of current and increasing human population size is incompatible with the survival of biological diversity and the 6 th mass extinction cannot be stopped. For the vast majority of species we have neither the knowledge of when they will go extinct nor the capacity to find out. Conventional conservation measures can only amount to token damage limitation. Advances in molecular biology allow low cost options for storing the genetic diversity of numerous species and maximising future options for restoring species.

Research paper thumbnail of Fig. 2 in A First Record Of The Family Cerastidae In Thailand, With A Description Of A New Species (Pulmonata: Orthurethra: Cerastidae)

Fig. 2. Anatomy of Rhachistia conformalis Sutcharit & Panha, new species (Paratype CUMZ 3797): A,... more Fig. 2. Anatomy of Rhachistia conformalis Sutcharit & Panha, new species (Paratype CUMZ 3797): A, reproductive system; B, pallial system; C, genitalia of Amimopina subangulatus from Jed Saw Noi Waterfall, Saraburi (CUMZ 3798).

Research paper thumbnail of A First Record Of The Family Cerastidae In Thailand, With A Description Of A New Species (Pulmonata: Orthurethra: Cerastidae)

Sutcharit, Chirasak, Naggs, Fred, Panha, Somsak (2010): A First Record Of The Family Cerastidae I... more Sutcharit, Chirasak, Naggs, Fred, Panha, Somsak (2010): A First Record Of The Family Cerastidae In Thailand, With A Description Of A New Species (Pulmonata: Orthurethra: Cerastidae). Raffles Bulletin of Zoology 58 (2): 251-258

Research paper thumbnail of Indoartemon prestoni Gude 1903

<i>Indoartemon prestoni</i> (Gude, 1903) (Figs. 1, 3C, D, Table 1) <i>Streptaxi... more <i>Indoartemon prestoni</i> (Gude, 1903) (Figs. 1, 3C, D, Table 1) <i>Streptaxis prestoni</i> Gude, 1903: 322, 323, pl. 12, figs 17–19. Type locality: Lampun, Siam. <i>Haploptychius prestoni</i>: Kobelt, 1906: 140, 141, pl. 62, figs 16–18. Zilch, 1961: 84. Richardson, 1988: 219. <i>Oophana (Indoartemon) prestoni</i>: Benthem Jutting, 1954: 96. <b>Material examined.</b> Of the two specimens mentioned by Gude (1903: 323) the single syntype in the lot NHMUK 1922.8.29.5 (Fig. 3C) is here designated as the lectotype. Additional record: CUMZ 5015 (12 shells; Fig. 3D), Wat Tam Ra-Khang, Si Samrong, Sukhothai, northern central lowlands, Thailand. Isolated limestone hills reaching about 200 m above mean sea level (17°9.6'6.0"N, 99°33'35.7"E). <i>Indoartemon prestoni</i> can be distinguished from <i>I. laevis</i> from Myanmar by its higher spire and distinct suture, regularly expanding whorls, deeper umbilicus and presence of a basal lamella. This species differs from <i>I. cingalensis</i> in its larger shell, lower spire, presence of a columellar lamella and in the last whorl being more deviated from the vertical axis. <i>Indoartemon prestoni</i> can be distinguished from <i>I. eburnea</i> by its lower spire with indistinct suture, the last whorl being more deviated from the vertical axis and a widely open umbilicus. <i>Indoartemon prestoni</i> has been placed in <i>Haploptychius</i> and <b>Remarks.</b> An oblique-heliciform shell with 7–7¾ whorls, white, glossy, translucent with distinct sutures. Fine transverse ridges diminish below the periphery. Smooth embryonic shell with about 2½ whorls. Periphery rounded, earlier whorls do not extend beyond the diameter of the axially deflected last whorl. Umbilicus open. Aperture subcircular, peristome thickened and expanded. Apertural dentition composed of one parietal lamella and palatal lamella (Fig. 3D). <i>Oophana</i>, but the presence of a single parietal lamella and a single palatal lamella confirm its position in <i>Indoartemon.</i>

Research paper thumbnail of Indoartemon eburneus Pfeiffer 1861

<i>Indoartemon eburneus</i> (Pfeiffer, 1861) (Figs 1, 3A, B, Table 1) <i>Strept... more <i>Indoartemon eburneus</i> (Pfeiffer, 1861) (Figs 1, 3A, B, Table 1) <i>Streptaxis eburnea</i> Pfeiffer, 1861: 23. Type locality: Cochin China. <i>Streptaxis eburneus</i>: Pfeiffer, 1868: 447. Gude, 1903: 226, pl. 4, figs 4–6. <i>Odonartemon</i> <i>(Odonartemon) eburneus</i>: Kobelt, 1905: 91, 92, pl. 58, figs 21–23. Thiele, 1931: 730. <i>Oophana (Indoartemon) eburnea</i>: Forcart, 1946: 215. <i>Indoartemon eburneus</i>: Zilch, 1960: 562, fig. 1196. <b>Material examined.</b> A single syntype in the H. Cuming collection is designated here as the lectotype NHMUK 20120255 (Fig. 1A). Additional record CUMZ 5014 (16 shells; Fig. 1C), Wat Tam Phalom, Loei, Thailand. Limestone hills 400–600 m above the mean sea level (17°33'17.1"N, 101°52'4.3"E). <b>Remarks.</b> The oblique-heliciform shell possesses 7½ whorls and is a translucent glossy white with distinct sutures; fine transverse ridges diminish below the periphery. The embryonic shell is smooth and large with about 2½ whorls. The periphery is shouldered, the last whorl axially deflected and umbilicus open. Aperture semi-ovate, peristome discontinuous and expanded. Apertural dentition with one parietal and one palatal lamella (Fig. 3A). <i>Indoartemon laevis</i> (Blanford, 1899) from Myanmar is distinctive with a smaller shell, lower spire and a basal lamella. <i>Indoartemon eburnea</i> is superficially similar to <i>I. cingalensis</i> from Sri Lanka, however, the last whorl is less deviated from the vertical axis and a columellar lamella is present. Shells from Thailand (Fig. 3B) are slightly larger than the lectotype (Fig. 3A). However, apertural dentition and shell shape correspond and the size difference is interpreted as intra-specific variation.

Research paper thumbnail of Fig. 8 in Revision of the carnivorous snail genus Indoartemon Forcart, 1946 and a new genus Carinartemis from Thailand (Pulmonata: Streptaxidae)

Fig. 8. Internal sculpture of genitalia of Carinartemis spp: A–F, Carinartemis vesperus, new spec... more Fig. 8. Internal sculpture of genitalia of Carinartemis spp: A–F, Carinartemis vesperus, new species, paratype CUMZ 6201, (A) details of atrial pore on the atrium surface, (B) high magnification of penial hooks, (C) top view of penial hook, (D) arrangement of vaginal folds with hooks, (E) high magnification of vaginal hook, and (F) radula morphology. G–K, Carinartemis striatus, new species, paratype CUMZ 6205, (G) details of atrium surface, (H) low magnification shows arrangement of penial hooks, (I) low magnification shows arrangement of vaginal folds, (J) high magnification of penial hooks, and (K) radula morphology.

Research paper thumbnail of Fig. 5 in Revision of the carnivorous snail genus Indoartemon Forcart, 1946 and a new genus Carinartemis from Thailand (Pulmonata: Streptaxidae)

Fig. 5. Internal sculpture of genitalia of Indoartemon medius, new species, paratype CUMZ 5017: A... more Fig. 5. Internal sculpture of genitalia of Indoartemon medius, new species, paratype CUMZ 5017: A, details of atrial pore on the atrium surface; B, low magnification shows arrangement of penial hooks; C, high magnification of penial hooks in proximal area; D, top view of penial hook, hooks shrunken in tubed penial papillae; E, low magnification of penial hook in distal area; F, lateral view of penial hook in distal area; G, high magnification of penial hooks in distal area; H, arrangement of vaginal folds; I, radula morphology.

Research paper thumbnail of Concatenated DNA sequence alignments of CO1, ND1 and 16S rRNA for the land snail Corilla

Four concatenated alignment (including indels) of three mitochondrial genes (CO1, ND1 and 16S rRN... more Four concatenated alignment (including indels) of three mitochondrial genes (CO1, ND1 and 16S rRNA) for the Sri Lankan land snail Corilla (Pulmonata: Corillidae). See: Raheem, D.C., Breugelmans, K., Wade, C.M., Naggs, F.C., Backeljau, T., In press, Exploring the shell-based taxonomy of the Sri Lankan land snail Corilla H. and A. Adams, 1855 (Pulmonata: Corillidae) using mitochondrial DNA, Molecular Phylogenetics and Evolution. All datasets aligned using MAFFT v. 7 (Katoh & Standley, 2013, Molecular Biology and Evolution, 30, 772-780). 1) File name: 1_Corilla47seq.fas Concatenated alignment of CO1, ND1 and 16S rRNA for Corilla (42 samples) and 5 other land snails. Concatenated alignment (including indels) of three mitochondrial genes (CO1, ND1 and 16S rRNA) for the land pulmonate Corilla (42 samples) and 5 other stylommatophoran taxa (Albinaria caerulea, Cornu aspersum, Halongella schlumbergeri, Lissachatina fulica and Sculptaria damaraensis damaraensis). CO1 = 1-459 by (commencing at codon position 2); ND1 = 460-891 bp (commencing at codon position 3); 16S = 892-2166 bp. 2) File name: 2_Corilla45seq.fas Concatenated alignment of CO1, ND1 and 16S rRNA for Corilla (40 samples) and 5 other land snails. Concatenated alignment (including indels) of three mitochondrial genes (CO1, ND1 and 16S rRNA) for the land pulmonate Corilla (40 samples) and 5 other stylommatophoran taxa (Albinaria caerulea, Cornu aspersum, Halongella schlumbergeri, Lissachatina fulica and Sculptaria damaraensis damaraensis). CO1 = 1-459 by (commencing at codon position 2); ND1 = 460-891 bp (commencing at codon position 3); 16S = 892-2163 bp. 3) File name: 3_Corilla42seq.fas Concatenated alignment of CO1, ND1 and 16S rRNA for Corilla (42 samples). Concatenated alignment (including indels) of three mitochondrial genes (CO1, ND1 and 16S rRNA) for the land pulmonate Corilla (42 samples). CO1 = 1-459 by (commencing at codon position 2); ND1 = 460-899 bp (commencing at codon position 3); 16S = 900-1361 bp. 4) File name: 4_Corilla40seq.fas Concatenat [...]

Research paper thumbnail of Fine-scale geographical sampling and molecular characterization of the giant African land snail in its invasive range in Asia shows low genetic diversity, new haplotypes and the emergence of another haplotype from the Indian Ocean Islands

Biological Journal of The Linnean Society, Sep 7, 2022

Native to East Africa, the giant African snail Lissachatina [=Achatina] fulica (Bowdich, 1822) is... more Native to East Africa, the giant African snail Lissachatina [=Achatina] fulica (Bowdich, 1822) is a tropical crop pest and one of the world's top 100 invasive species. It is now present in at least 52 countries worldwide, with an actively expanding range. Lissachatina fulica was first introduced to India in 1847, but subsequent arrivals in India and local patterns of spread remain unclear. This study uses the 16S rRNA gene to identify the extent of genetic variation in India by sampling Indian populations and comparing them with published sequence data. A total of 307 snails were collected from 178 localities in India and from a single locality in the UAE, and the 16S rRNA gene was amplified and sequenced. Eight haplotypes were identified from India of which four are newly recognized. The new haplotypes identified in this study have increased the number of L. fulica 16S rRNA haplotypes from 19 to 23. Examination of haplotype and nucleotide diversities revealed that genetic variation is low in India, the UAE and across Asia as a whole. The number of haplotypes was higher in India when compared to other invasive regions but all of the Asian haplotypes appear to be closely related to the most common haplotypes in the Indian Ocean Islands. Heavy trade between the snail-infested and native-range countries suggests that the variation observed in India might be traced back to its native range, but the lack of sampling and paucity of sequences from East Africa currently prevents a comparison. Tracing back the emergent haplotypes by additional sampling could throw more light on the spread of L. fulica.

Research paper thumbnail of A tale of two islands

Research paper thumbnail of Redescription of<i>Acmella tersa</i>(Benson, 1853), the type species of<i>Acmella</i>W.T. Blanford, 1869 (Gastropoda: Assimineidae), from Meghalaya, Northeast India

Molluscan Research, Oct 2, 2021

The type species of the assimineid genus Acmella W.T. Blanford, 1869 is Cyclostoma tersum Benson,... more The type species of the assimineid genus Acmella W.T. Blanford, 1869 is Cyclostoma tersum Benson, 1853, originally described from 'Musmai' [Mawsmai], Meghalaya, Northeast India. No specimens from Benson's type series can be traced, and contemporary shells collected from the type locality in museum collections are extremely worn. It has therefore been impossible to examine shell microsculpture, an important taxonomic character in the diagnosis of species of Assimineidae, using museum specimens. In order to provide better diagnostic characters for the genus Acmella, we redescribe and illustrate Acmella tersa from newly collected specimens, one of which is designated as the neotype. We also provide a list of all known species attributed to Acmella.

Research paper thumbnail of Tortaxis Pilsbry, 1906 and Allopeas Baker, 1935 (Mollusca, Gastropoda): proposed conservation by the designation of a neotype for Achatina erecta Benson, 1842

The Bulletin of zoological nomenclature, 1992

Research paper thumbnail of On the proposed conservation of the specific name of Bulinus wrighti Mandahl-Barth, 1965 (Mollusca, Gastropoda)

The Bulletin of zoological nomenclature, 2000

Research paper thumbnail of Bulinus wrighti Mandahl-Barth, 1965 (Mollusca, Gastropoda): proposed conservation of the specific name

The Bulletin of zoological nomenclature, 1999

The purpose of this application is to conserve the specific name of Bulinus wrighii Mandahl-Barth... more The purpose of this application is to conserve the specific name of Bulinus wrighii Mandahl-Barth, 1965 for a freshwater snail (family planorbidae) from Saudi Arabia, Oman and Yemen which is an often-cited intermediate host for schistosome parasites of medical and veterinary importance. The name is a junior primary homonym o(Bulinus nrightii Sowerby, 1853 which relates to a large West African land snail (family achatinidae). The specific name of the latter has been used for nearly 150 years but since 1855 the taxon has been placed in Pseudachatina Albers, 1850, and not in Bulinus O.F. Miiller, 1781. Neither Pseudachatina nrightii (Sov/erhy, 1853) nor Bulinus wrighti Mandahl-Barth. 1965 has a junior synonym. Keywords.

Research paper thumbnail of Phylogenetics and species delimitations of the operculated land snail Cyclophorus volvulus (Gastropoda: Cyclophoridae) reveal cryptic diversity and new species in Thailand

Scientific Reports, 2019

Recent conceptual and practical advances in phylogenetic species delimitation have enabled progre... more Recent conceptual and practical advances in phylogenetic species delimitation have enabled progressively robust biodiversity studies. Delimiting species in widespread taxa is an intriguing problem; the edible operculated land snailCyclophorus volvulus(Müller, 1774) is a good example since it shows a high degree of shell and color variation along with a widespread distribution throughout Thailand. Taxonomic boundaries forC.volvuluswere examined and clarified using a combined morphological and phylogenetic approach, the latter of which was based on both nuclear and mitochondrial gene sequences. Moreover, three species delimitation analyses were applied: Poisson tree processes (PTP), automatic barcode gap discovery (ABGD), and generalized mixed Yule-coalescent (GMYC). All phylogenetic trees revealed thatC.volvuluswas polyphyletic and comprised of three clades that coincided with their geographic distribution. The three species delimitation analyses concurred with the phylogenies and fo...

Research paper thumbnail of Report of Lissachatina fulica (Bowdich, 1822) (Stylommatophora: Achatinidae) in rubber plantations of Western Ghats, Kerala

Entomon, Dec 31, 2021

The giant African snail Lissachatina fulica (Bowdich, 1822) is reported as a pest in rubber plant... more The giant African snail Lissachatina fulica (Bowdich, 1822) is reported as a pest in rubber plantations adjoining forest fringes in the Western Ghats region of Kerala. The snail was causing damage to rubber (Hevea brasiliensis) and nutmeg (Myristica fragrans) trees, by feeding on rubber latex and nutmeg twigs and leaves. L. fulica infestation on M. fragrans is a new record. The snail infestation in rubber plantations is the first report from the Western Ghats region in Kerala.

Research paper thumbnail of Evolutionary relationships among the Pulmonate land snails and slugs (Pulmonata, Stylommatophora)

Biological Journal of The Linnean Society, Apr 18, 2006

We have incorporated an additional 56 species of land snails and slugs in our ribosomal (r) RNA m... more We have incorporated an additional 56 species of land snails and slugs in our ribosomal (r) RNA molecular phylogeny. The new taxa include representatives of several important groups. The molecular tree now includes 160 species of stylommatophoran land snails and slugs in 144 genera in 61 families. In the rDNA tree, the Stylommatophora are principally divided into an 'achatinoid' and a 'non-achatinoid' clade. Within these clades, several major land snail groups, including the Orthurethra, Elasmognatha, Limacoidea, and Helicoidea, are supported. Overall, the rDNA molecular phylogeny has remained stable following the incorporation of the additional taxa, with these additions having little impact on the major evolutionary patterns in the tree. Taxonomic coverage of the Orthurethra, Orthalicidae, Camaenidae, and Bradybaenidae is increased significantly. The camaenids and bradybaenids form a complex, and both appear to be paraphyletic. Several families of uncertain affinity, such as the Sagdidae and Thyrophorellidae, are included for the first time. The Sagdidae are shown to belong to the Helicoidea, and the Thyrophorellidae to the Achatinoidea.

Research paper thumbnail of Comments On The Proposed Conservation Of Hydrobia Hartmann, 1821 Acuta With A Neotype; Proposed Designation Of Turbo Ventrosus Montagu, 1803 As The Type Species Of Ventrosia Radoman, 1977; And Proposed Emendation Of Spelling Of Hydrobiina Mulsant, 1844 (Insecta, Coleoptera) To Hydrobiusina, So Re...

The Bulletin of zoological nomenclature, 1999

Comments on the proposed conservation of Hydrobia Hartmann, 1821 (IMollusca, Gastropoda) and Cydo... more Comments on the proposed conservation of Hydrobia Hartmann, 1821 (IMollusca, Gastropoda) and Cydostoma acutum Draparnaud, 1805 (currently Hydrohia acuta) by the replacement of the lectotype of H. acuta with a neotype; proposed designation of Turbo ventrosus Montagu, 1803 as the type species of Ventrosia Radoman, 1977; and proposed emendation of spelling of hydrobiina Mulsant, 1844 (Insecta, Coleoptera) to hvdrobiusina, so removing the homonymy with hvdrobiidae Troschel, 1857 (Mollusca)

Research paper thumbnail of Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description... 45 Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species

zookeys.401.7075 Twelve new species of the streptaxid snail genus Discartemon Pfeiffer, 1856 are ... more zookeys.401.7075 Twelve new species of the streptaxid snail genus Discartemon Pfeiffer, 1856 are described from southern

Research paper thumbnail of tale of two islands. The reality of large-scale extinction in the early stages of the Anthropocene: a lack of awareness and appropriate action

The Journal of Population and Sustainability, Dec 1, 2019

Research paper thumbnail of Saving living diversity in the face of the unstoppable 6th mass extinction: a call for urgent international action

The Journal of Population and Sustainability, May 1, 2017

The global scale and impact of current and increasing human population size is incompatible with ... more The global scale and impact of current and increasing human population size is incompatible with the survival of biological diversity and the 6 th mass extinction cannot be stopped. For the vast majority of species we have neither the knowledge of when they will go extinct nor the capacity to find out. Conventional conservation measures can only amount to token damage limitation. Advances in molecular biology allow low cost options for storing the genetic diversity of numerous species and maximising future options for restoring species.

Research paper thumbnail of Fig. 2 in A First Record Of The Family Cerastidae In Thailand, With A Description Of A New Species (Pulmonata: Orthurethra: Cerastidae)

Fig. 2. Anatomy of Rhachistia conformalis Sutcharit & Panha, new species (Paratype CUMZ 3797): A,... more Fig. 2. Anatomy of Rhachistia conformalis Sutcharit & Panha, new species (Paratype CUMZ 3797): A, reproductive system; B, pallial system; C, genitalia of Amimopina subangulatus from Jed Saw Noi Waterfall, Saraburi (CUMZ 3798).

Research paper thumbnail of A First Record Of The Family Cerastidae In Thailand, With A Description Of A New Species (Pulmonata: Orthurethra: Cerastidae)

Sutcharit, Chirasak, Naggs, Fred, Panha, Somsak (2010): A First Record Of The Family Cerastidae I... more Sutcharit, Chirasak, Naggs, Fred, Panha, Somsak (2010): A First Record Of The Family Cerastidae In Thailand, With A Description Of A New Species (Pulmonata: Orthurethra: Cerastidae). Raffles Bulletin of Zoology 58 (2): 251-258

Research paper thumbnail of Indoartemon prestoni Gude 1903

<i>Indoartemon prestoni</i> (Gude, 1903) (Figs. 1, 3C, D, Table 1) <i>Streptaxi... more <i>Indoartemon prestoni</i> (Gude, 1903) (Figs. 1, 3C, D, Table 1) <i>Streptaxis prestoni</i> Gude, 1903: 322, 323, pl. 12, figs 17–19. Type locality: Lampun, Siam. <i>Haploptychius prestoni</i>: Kobelt, 1906: 140, 141, pl. 62, figs 16–18. Zilch, 1961: 84. Richardson, 1988: 219. <i>Oophana (Indoartemon) prestoni</i>: Benthem Jutting, 1954: 96. <b>Material examined.</b> Of the two specimens mentioned by Gude (1903: 323) the single syntype in the lot NHMUK 1922.8.29.5 (Fig. 3C) is here designated as the lectotype. Additional record: CUMZ 5015 (12 shells; Fig. 3D), Wat Tam Ra-Khang, Si Samrong, Sukhothai, northern central lowlands, Thailand. Isolated limestone hills reaching about 200 m above mean sea level (17°9.6'6.0"N, 99°33'35.7"E). <i>Indoartemon prestoni</i> can be distinguished from <i>I. laevis</i> from Myanmar by its higher spire and distinct suture, regularly expanding whorls, deeper umbilicus and presence of a basal lamella. This species differs from <i>I. cingalensis</i> in its larger shell, lower spire, presence of a columellar lamella and in the last whorl being more deviated from the vertical axis. <i>Indoartemon prestoni</i> can be distinguished from <i>I. eburnea</i> by its lower spire with indistinct suture, the last whorl being more deviated from the vertical axis and a widely open umbilicus. <i>Indoartemon prestoni</i> has been placed in <i>Haploptychius</i> and <b>Remarks.</b> An oblique-heliciform shell with 7–7¾ whorls, white, glossy, translucent with distinct sutures. Fine transverse ridges diminish below the periphery. Smooth embryonic shell with about 2½ whorls. Periphery rounded, earlier whorls do not extend beyond the diameter of the axially deflected last whorl. Umbilicus open. Aperture subcircular, peristome thickened and expanded. Apertural dentition composed of one parietal lamella and palatal lamella (Fig. 3D). <i>Oophana</i>, but the presence of a single parietal lamella and a single palatal lamella confirm its position in <i>Indoartemon.</i>

Research paper thumbnail of Indoartemon eburneus Pfeiffer 1861

<i>Indoartemon eburneus</i> (Pfeiffer, 1861) (Figs 1, 3A, B, Table 1) <i>Strept... more <i>Indoartemon eburneus</i> (Pfeiffer, 1861) (Figs 1, 3A, B, Table 1) <i>Streptaxis eburnea</i> Pfeiffer, 1861: 23. Type locality: Cochin China. <i>Streptaxis eburneus</i>: Pfeiffer, 1868: 447. Gude, 1903: 226, pl. 4, figs 4–6. <i>Odonartemon</i> <i>(Odonartemon) eburneus</i>: Kobelt, 1905: 91, 92, pl. 58, figs 21–23. Thiele, 1931: 730. <i>Oophana (Indoartemon) eburnea</i>: Forcart, 1946: 215. <i>Indoartemon eburneus</i>: Zilch, 1960: 562, fig. 1196. <b>Material examined.</b> A single syntype in the H. Cuming collection is designated here as the lectotype NHMUK 20120255 (Fig. 1A). Additional record CUMZ 5014 (16 shells; Fig. 1C), Wat Tam Phalom, Loei, Thailand. Limestone hills 400–600 m above the mean sea level (17°33'17.1"N, 101°52'4.3"E). <b>Remarks.</b> The oblique-heliciform shell possesses 7½ whorls and is a translucent glossy white with distinct sutures; fine transverse ridges diminish below the periphery. The embryonic shell is smooth and large with about 2½ whorls. The periphery is shouldered, the last whorl axially deflected and umbilicus open. Aperture semi-ovate, peristome discontinuous and expanded. Apertural dentition with one parietal and one palatal lamella (Fig. 3A). <i>Indoartemon laevis</i> (Blanford, 1899) from Myanmar is distinctive with a smaller shell, lower spire and a basal lamella. <i>Indoartemon eburnea</i> is superficially similar to <i>I. cingalensis</i> from Sri Lanka, however, the last whorl is less deviated from the vertical axis and a columellar lamella is present. Shells from Thailand (Fig. 3B) are slightly larger than the lectotype (Fig. 3A). However, apertural dentition and shell shape correspond and the size difference is interpreted as intra-specific variation.

Research paper thumbnail of Fig. 8 in Revision of the carnivorous snail genus Indoartemon Forcart, 1946 and a new genus Carinartemis from Thailand (Pulmonata: Streptaxidae)

Fig. 8. Internal sculpture of genitalia of Carinartemis spp: A–F, Carinartemis vesperus, new spec... more Fig. 8. Internal sculpture of genitalia of Carinartemis spp: A–F, Carinartemis vesperus, new species, paratype CUMZ 6201, (A) details of atrial pore on the atrium surface, (B) high magnification of penial hooks, (C) top view of penial hook, (D) arrangement of vaginal folds with hooks, (E) high magnification of vaginal hook, and (F) radula morphology. G–K, Carinartemis striatus, new species, paratype CUMZ 6205, (G) details of atrium surface, (H) low magnification shows arrangement of penial hooks, (I) low magnification shows arrangement of vaginal folds, (J) high magnification of penial hooks, and (K) radula morphology.

Research paper thumbnail of Fig. 5 in Revision of the carnivorous snail genus Indoartemon Forcart, 1946 and a new genus Carinartemis from Thailand (Pulmonata: Streptaxidae)

Fig. 5. Internal sculpture of genitalia of Indoartemon medius, new species, paratype CUMZ 5017: A... more Fig. 5. Internal sculpture of genitalia of Indoartemon medius, new species, paratype CUMZ 5017: A, details of atrial pore on the atrium surface; B, low magnification shows arrangement of penial hooks; C, high magnification of penial hooks in proximal area; D, top view of penial hook, hooks shrunken in tubed penial papillae; E, low magnification of penial hook in distal area; F, lateral view of penial hook in distal area; G, high magnification of penial hooks in distal area; H, arrangement of vaginal folds; I, radula morphology.