Yander Luis Diez Garcia | Universidad de Oriente, Santiago de Cuba (original) (raw)

Papers by Yander Luis Diez Garcia

Revista de Investigaciones Marinas, 2013

la clave taxonómica para su identificación y los apuntes sobre su distribución batimétrica. Se ad... more la clave taxonómica para su identificación y los apuntes sobre su distribución batimétrica. Se adicionan cuatro especies a la lista de porcelánidos de las costas cubanas (Neopisosoma angustifrons, Petrolisthes marginatus, P. politus, y P. quadratus).

Revista de Investigaciones Marinas, Sep 19, 2017

The Cuban marine biodiversity is the most richness of the Caribbean Sea, however, numbers organis... more The Cuban marine biodiversity is the most richness of the Caribbean Sea, however, numbers organism's groups are almost or all unknown. This is the example of Platyhelminthes, which only are known the parasitic species and five polyclads. In this work, we record 11 species of Polycladida collected or photographed in situ in eastern and western regions of the archipelago. Sampling were conducted directly under rocks in rocky and corallines bottoms. The animals were maintaining alive in the laboratory for the study. Species identification was done revIsTA INvesTIGACIONes MArINAs

Simplexcystis asymmetrica Diez, Reygel & Artois gen. n. sp. n. (Fig. 2... more Simplexcystis asymmetrica Diez, Reygel & Artois gen. n. sp. n. (Fig. 21–23) urn:lsid:zoobank.org:act: BB2226F6-C526-47E4-8B49-F5CF45AB242E Material and distribution. Observations on one live specimen, serially sectioned afterwards, designated holotype (FMNH https://id.luomus.fi/ KV.655), collected in Playa Chica (28°55'05"N, 13°40'07"W) (Type Locality), Puerto del Carmen, Lanzarote, Canary Islands (October 10, 2011), fine sand accumulated at the end of the rocky reef, 18 m deep, salinity 35 ‰. Etymology. The genus name refers to the fact that the construction of the atrial organs in the new genus is relatively simple compared to that of other koinocystidids. The species name refers to the fact that the copulatory bulb is asymmetric due to the seminal duct entering laterally. Diagnosis of Simplexcystis gen. n. Representative of Koinocystididae with strong juncture sphincter in between proboscis bulb and cone. Male duct running eccentrically through the copulatory bulb, the latter also enclos- ing the prostate vesicle. Copulatory organ devoid of any hard structure. Without bursa. Epithelium of the female, the male, and part of the common atrium lined by a brush border. All these structures surrounded by a sheath of muscles in different orientations. Type species: S. asymmetrica sp. n. (by monotypy). Provisionally with the same diagnosis as the genus. Description. Live specimen about 1.5 mm long, translucent, with pinkish parenchymal glands and a pair of eyes (Fig. 21A: e). The brain (Fig. 21A: br) is located caudally from the proboscis. The syncytial and fully ciliated epidermis is 5–7 µm thick, with cilia 3–4 µm long. The epidermis shows many vacuoles some of which are empty, others filled with a dark, granular secretion. The epidermis shows many rhabdites (Fig. 21B–C, 22 & 23C–E: rh) all over the body, except for the part anterior to the proboscis. Rhabdites are also lacking around the mouth and gonopore. The rhabdites situated near the apical [...]

Itaipusa aberrans Diez, Aguirre, Reygel & Artois sp. n. (Fig. 2) urn:l... more Itaipusa aberrans Diez, Aguirre, Reygel & Artois sp. n. (Fig. 2) urn:lsid:zoobank.org:act: 171C2F91-B386-4BD4-B07A-CCDC27FAD1F1 Material and distribution. One specimen studied alive and whole mounted, designated holotype (FMNH https:// id.luomus.fi/ KV.646), collected in Siboney (19°57'34"N; 75°42'07"W) (Type Locality), Santiago de Cuba, Cuba (April 5, 2017), fine-grained sand rich in organic matter, 0.3 m deep, salinity 34 ‰. Etymology. Species named after the unique and aberrant structure of the cirrus. Diagnosis. Species of Itaipusa with an armed cirrus subdivided into two short, heavily folded plates, connected to each other by a thin duct lined by some small teeth. One plate is 32 μm long and bears a few spines 3–4 μm long. The second plate is spiral-shaped and armed with a few 1–9 μm long spines. Description. The specimen is 1.7 mm long, unpigmented, with two eyes (Fig. 2A: e). Proboscis (Fig. 2A: pr) of the typical koinocystidid construction (see Brunet 1972; Karling 1980); it is 10% of the body length in the live animal. The pharynx (Fig. 2A: ph) has a diameter of 15% of the body length in the live specimen, situated at 50%. A pair of testes is located antero-laterally from the pharynx. Paired elongated seminal vesicles fuse to form a short seminal duct just before entering into the copulatory bulb. The ovoid copulatory bulb (Fig. 2A: cb) encloses the prostate vesicle (typically encompassing numerous filiform ducts) and the armed cirrus (Fig. 2B–E). The cirrus is subdivided into two short, armed plates connected to each other by a narrow structure with some small folded sclerotised pieces (Fig. 2E: sfp). The first plate (Fig. 2B, 2D–E: pl1) is a heavily folded spiral and bears few 4–9- μm-long spines (x̄ = 7 μm; n = 5). The second plate (Fig. 2C, D–E: pl2) is 32 μm long, and also shows numerous folds and bears a few spines of 4–5 μm long (x̄ = 4 μm; n = 4). The spines of the structure connecting both plates are 1–2 μm long (x̄ = 1 μm; n = [...]

Reinhardorhynchus riae Diez, Reygel & Artois sp. n. (Fig. 7–8) urn:lsi... more Reinhardorhynchus riae Diez, Reygel & Artois sp. n. (Fig. 7–8) urn:lsid:zoobank.org:act: 65D70F61-74DB-458B-B5EA-18AB0F972270 Material and distribution. Observations on live specimens. Three whole mounts, one designated holotype (FMNH https://id.luomus.fi/ KV.651), the others reference material (HU XIII.3.33– XIII.3.34), and one serially-sectioned specimen (HU XIII.3.35) collected in Mala (Lanzarote, Canary Islands) (29°05'01"N; 13°26'59"W), in front of "Cuevita de Mala" (October 10, 2011), sand patch under loose macroalgae, coarse shell gravel, very clean, 12 m deep (Type Locality). One whole mount from the same locality (HU XIII.3.36) (October 8, 2011), medium-fine, calcareous sand from a large parch among rocks, poorly-oxygenated redox layer just below surface, 20 m deep. Four whole mounts and seven serially-sectioned specimens (HU XIII.3.37– XIII.3.47) collected in a sheltered beach, a bit south of Orzola (Lanzarote, Canary Islands) (29°13'23"N; 13°27'05"W) (October 6, 2011), medium-coarse sand, with holes from burrowing animals, taken at low tide, just below the water line. One whole mount (HU XIII.3.48) collected at the same locality (October 7, 2011), sample taken 0.4–0.5 m deep, coarse sand with lava rocks scattered around. Salinity 35 ‰ in all the localities. One whole mount (HU XIII.3.49) from Punta Negra (40°57'12"N, 08°13'43"E), Stintino, Sardinia, Italia (September 2018), on silty algae, 0.5 m deep, salinity 40 ‰. Etymology. Species dedicated to Ria Vanderspikken (Hasselt University), in acknowledgement of all her help in organising the sampling campaigns, archiving of literature and taking care of the HU specimen collection. Diagnosis. Species of Reinhardorhynchus gen. n. with a copulatory organ armed with two transverse spiny belts, a penis papilla, and two distal hooks. Prostate vesicle enclosed in a muscular bulb. This bulb ends in a pseudocuticular plate and is armed with two spiny rows being ±72 μm and ±55 μm long, respectively. Spines ±3 μm long at [...]

Reinhardorhynchus beatrizae Diez, Aguirre, Reygel & Artois sp. n. (Fig... more Reinhardorhynchus beatrizae Diez, Aguirre, Reygel & Artois sp. n. (Fig. 10) urn:lsid:zoobank.org:act: 7191A493-CCA1-421D-88D5-99AD3D7E5705 Material and distribution. Observations on live specimens, whole mounted afterwards. Two whole mounts from Las Sardinas (19°56'24"N; 76°46'41"W) (Type Locality), Guamá, Santiago de Cuba, Cuba (June 22, 2016), one of which is designated holotype (FMNH https://id.luomus.fi/ KV.649), the other one in HU (XIII.4.03), silty sand in rock pools protected from wave action, 0.3 m deep, salinity 33 ‰. Six whole mounts and three serially-sectioned specimens (in poor conditions) from Siboney (19°57'34"N; 75°42'07"W), Santiago de Cuba, Cuba (September 4, 2016; March 22 & June 5, 2017), intertidal (upper 10 cm of fine-grained sand) up to 0.5 m deep (fine-grained sand rich in organic matter), salinity 33–35 ‰ (HU XIII.4.04– XIII.4.13). Two whole mounts from Bueycabón (19°57'38"N; 76°57'28"W), Santiago de Cuba, Cuba (February 6 & 21, 2018), fine-grained sand rich in organic matter, 0.5 m deep, salinity 33 ‰ (HU XIII.4.14– XIII.4.15). Etymology. Species dedicated to Prof. Dr. Beatriz Martínez Daranas, researcher at the Marine Research Centre of Havana University, Cuba), specialist in taxonomy and ecology of seagrass and macroalgae. Diagnosis. Species of Reinhardorhynchus gen. n. with the copulatory bulb encompassing the prostate vesicle, an armed cirrus and two distal hooks. Cirrus armed with triangular, ±4-μm-long spines. Cirrus also includes a ±347- μm-long spiny belt. Proximally in the belt the spines are scale shaped and ±23 μm long. Proximal spines followed by a section bearing ±6-μm-long spines that runs distally and ends in the distal comb-shaped part, which is armed with ±32-μm-long spines. Larger hook ±101 μm long and ±59 μm wide at its base. Its base bears a ±45-μm-long and funnel-like hook. Smaller hook ±89 μm long and ±47 μm wide at its base. Description. Live specimens are 1.5–2 mm long, translucent, with two eyes (Fig. [...]

Cheliplana cubana n. sp. Diez, Gobert, Reygel & Artois Fig. 1C–E <b... more Cheliplana cubana n. sp. Diez, Gobert, Reygel & Artois Fig. 1C–E Etymology. Species epithet refers to the island of Cuba, where the species was found. Material examined. Holotype. CUBA • 1 whole mount; Holguín province, Gibara municipality, Bahía de Gibara; 17 Feb. 2016; sublittoral, to a depth of up to 0.4 m, sandy bottom with many seashell fragments and organic material, salinity 32‰; KV.634. Other material. CUBA • 5 whole mounts; Holguín province, Gibara municipality, Bahía de Gibara; 17 Feb. 2016; sublittoral, to a depth of up to 0.4 m, sandy bottom with many seashell fragments and organic material, salinity 32‰; X.3.21–X.3.25 • 15 whole mounts; Holguín province, Banes municipality, Guardalavaca; 28 Feb. 2017; intertidal, superficial fine sand around roots of Avicennia germinans, salinity 35‰; HU X.2.08–X.2.22 • 3 whole mounts; Holguín province, Banes municipality, Macabi; sublittoral fine sand, 0.3 m deep, salinity 34‰; HU X.2.23–X.2.25. Description. Whole-mounted specimens are 0.6–1.6 mm (x = 0.9 mm; n = 16) long. The body is unpigmented, transparent. The proboscis (p, Fig. 1C) has a pair of small, curved hooks measuring 10–19 µm (x = 15 µm, n = 8), each with a dilated base and pointy tip. Hook supports are ~ 11 µm long. The pharynx bulb is relatively small and measures approximately 1/9 of the total body length (ph, Fig. 1C). The anterior edge of the pharynx bulb bears a number of anteriorly projecting papillae. The mouth is situated behind the proboscis and connects to the pharynx bulb via a long, unarmed, oral tube (ppc, Fig. 1C). The common genital opening, situated anterior to the haptic girdle at approximately 7/8 of the body length, is surrounded by clusters of glands that are conspicuous in live specimens. One large testis is located in the anterior half of the body, posterior to the pharynx (t, Fig. 1C). The male copulatory organ is situated in the posterior part of the body. A pair of elongated seminal vesicles enter the proximal e [...]

Cheliplana spuriaseminalis Diez, Reygel & Artois, 2019 Materi... more Cheliplana spuriaseminalis Diez, Reygel & Artois, 2019 Material examined. None. Known distribution. Bueycabón, Cuba (Diez et al. 2019). Remarks (summarised from literature). Specimens are pinkish and have a body length of 0.9–1 mm when whole mounted. The proboscis is armed with 16-µm-long, curved hooks. The muscular hook supports measure 5 µm. The spiny prepharyngeal cavity is twice as long as the pharynx. A single testis lies caudally to the pharynx. Seminal vesicles are paired and empty proximally into the copulatory bulb. Only one seminal vesicle is functional and filled with sperm, the other one is atrophied, empty and not connected to the testis. The cylindrical, curved copulatory bulb (83–105 µm x 14–17 µm) comprises the prostate vesicle, one or more accessory glands and a 31-µm-long, unarmed cirrus. Distally, the cirrus widens and is surrounded by longitudinal muscles. The single ovary and bursa are positioned caudally to copulatory bulb. The bursa is connected to the common atrium and opens to the outside world through a vagina externa. The gonopore lies anterior to the vaginal opening.

Cheliplana santiaguera Diez, Reygel & Artois, 2019 Material e... more Cheliplana santiaguera Diez, Reygel & Artois, 2019 Material examined. None. Known distribution. Siboney, Cuba (Diez et al. 2019). Remarks (summarised from literature). Specimens are pinkish and are 0.7–0.8mm long when whole mounted. The proboscis carries 16-µm-long, curved hooks. Hook supports are 6 to 8 µm long. The pharynx measures 124- 126 µm, corresponding to 1/8 of the total body length, and connects to the mouth through a twice as long, spiny prepharyngeal cavity. The copulatory bulb is inverted-pear shaped (50–74 µm) and comprises the prostate vesicle and spiny cirrus (22–28 µm, spines 0.5 µm). A sphincter occurs in the middle of the ejaculatory duct. The vitellarium extends from the pharynx to the copulatory bulb. A single bursa and ovary occur caudally. Oocytes lie in a row and proximally diminish in diameter. The bursa is connected to the common atrium and opens externally through a vagina, posterior to the common gonopore.

Las colecciones biológicas son una forma de preservar el patrimonio vivo de las diferentes region... more Las colecciones biológicas son una forma de preservar el patrimonio vivo de las diferentes regiones, para que sea apreciado y estudiado por investigadores y amantes de la naturaleza. Los museos dedicados a estos fines son de gran importancia para taxónomos y para la realización de la educación ambiental. En el presente trabajo se presenta el catálogo de las especies de decápodos (Palinura,

Scientific Data

In light of the ongoing freshwater biodiversity crisis, detailed knowledge regarding the spatial ... more In light of the ongoing freshwater biodiversity crisis, detailed knowledge regarding the spatial distribution of freshwater species is urgently required, especially in biodiversity hotspots. Here we present a database of georeferenced occurrence records of four freshwater invertebrate taxa groups across Cuba, namely flatworms (Platyhelminthes: Tricladida), insects (Ephemeroptera, Odonata, Hemiptera, Trichoptera, Coleoptera, Diptera), crabs and shrimps (Crustacea: Decapoda), and mollusks (Mollusca). We collated the geographic occurrence information from scientific literature, unpublished field records, museum collections and online databases. The database, comprising 6292 records of 457 species at 1075 unique localities, is organized in 32 fields that contain the information about the taxonomic classification of each recorded species, the sex and life stage of collected individuals; the geographic coordinates, location, author and date of the record and a reference to the original da...

Zootaxa, 2021

The taxon Koinocystididae is the third most species-rich family within Eukalyptorhynchia. However... more The taxon Koinocystididae is the third most species-rich family within Eukalyptorhynchia. However, its diversity and phylogeny have been largely neglected in former studies. We introduce three new genera and twelve new species of Koinocystididae including Simplexcystis asymmetrica gen. n. sp. n., Galapagetula cubensis sp. n., eight species of Reinhardorhynchus gen. n. and two species of Itaipusa. This raises the total number of species within Koinocystididae from 51 to 63. We also report on new distribution records for six known species: I. divae (Cuba, Panama and New Caledonia), I. karlingi (Sardinia and Lanzarote), Reinhardorhynchus riegeri comb. n. (Cuba), R. ruffinjonesi comb. n. (Cuba and Panama), Utelga heinckei (Cuba and Lanzarote), and U. pseudoheinckei (Sardinia). Simplexcystis asymmetrica gen. n. sp. n. is characterised by a male duct running eccentrically through the copulatory bulb, lack of any hard structures in the male system, lack of a bursa, and the fact that the ep...

Zootaxa, 2018

The first records of Polycystididae from Cuba are provided and discussed. In total nine species h... more The first records of Polycystididae from Cuba are provided and discussed. In total nine species have been collected, five of which are new to science, one representing a new genus. Polycydora intermedia gen. n. sp. n. shows intermediate features between Polycystis Kölliker, 1845 and Paulodora Marcus, 1948. The ovaries are kidney shaped, with the oocytes arranged in a row, and lack the hard “nozzles” of Paulodora. A female bursa as in Polycystis is present. In P. intermedia gen. n. sp. n. lacks the strong muscle bulb at the male bursa and the accessory glands type I in the male atrium, which are present in Polycystis. The male atrial organs include a prostate stylet type II connected to a free prostate vesicle type II. The four new species (Phonorhynchoides minor sp. n., Phonorhynchopsis capillaris sp. n., Phonorhynchopsis sublinguatus sp. n., Myobulla armenterosi sp. n.) are distinguished from their congeners by the specific shape and length of the male hard copulatory structures. P...

Check List, 2015

Marine crustaceans constitute one of the best studied groups in the Cuban waters. However, the le... more Marine crustaceans constitute one of the best studied groups in the Cuban waters. However, the level of systematic knowledge about them differs among the ecoregions of the platform. This paper presents the systematic list of hermit, porcelain and brachyuran crabs of the coast of Santiago de Cuba, on the southeast platform of Cuba. The records of the species have been compiled between 2009 and 2013, in ten locations, which differ in the type of habitats. Additional material was examined in the collection of the Universidad de Oriente Museum Charles Ramsdem. Eighty-one species are represented (seven hermits, eight porcelains and sixty-six true crabs). Data on their local and global distribution, their habitat, and notes on their reproductive period and fishing use are also provided.

Acta Botanica Brasilica, 2013

We investigated the distribution of epiphytic macroalgae on the thalli of their hosts at eight lo... more We investigated the distribution of epiphytic macroalgae on the thalli of their hosts at eight localities along the southeastern coast of Cuba between June 2010 and March 2011. We divided he epiphytes in two groups according to their distribution on the host: those at the base of the thallus and those on its surface. We determining the dissimilarity between the zones and the species involved. We identified 102 taxa of epiphytic macroalgae. There were significant differences between the two zones. In 31 hosts, the number of epiphytes was higher on the surface of the thallus, whereas the number of epiphytes was higher at the thallus base in 25 hosts, and the epiphytes were equally distributed between the two zones in five hosts (R=−0.001, p=0.398). The mean dissimilarity between the two zones, in terms of the species composition of the epiphytic macroalgae, was 96.64%. Hydrolithon farinosum and Polysiphonia atlantica accounted for 43.76% of the dissimilarity. Among macroalgae, the structure of the thallus seems to be a determinant of their viability as hosts for epiphytes.

Revista de Investigaciones Marinas, 2013

Revista de Investigaciones Marinas, Sep 19, 2017

Scientific Data

Zootaxa, 2021

Zootaxa, 2018

Check List, 2015

Acta Botanica Brasilica, 2013