A new species of Tokophrya (Ciliophora: Suctorea) found on hyporheos harpacticoid copepod of the genus Forficatocaris (Crustacea: Copepoda) from Brazil (original) (raw)
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Journal of Natural History, 2005
Two new species of harpacticoid copepods, Cletocamptus levis sp. nov. and Cletocamptus nudus sp. nov. are described from Brazil. Cletocamptus nudus sp. nov. seems to be closely related to C. schmidti based on the armature formula of mouth parts, P3 and P4, but can be separated based on the ornamentation of the anal operculum, relative length of exopodal and baseoendopodal setae of the female P5, and length ratio of the female P1 EXP:ENP. Cletocamptus levis sp. nov. seems to be more closely related to C. axi by the combination of a P1 ENP shorter than the P1 EXP, the armature formula of the mandibular palp, length: width ratio of caudal rami, and relative length of the female P3 ENP 2, male P2-P4 EXP 1, and number of segments of the male P3 ENP. It can be separated by the spinule ornamentation on the anal operculum, shape of female rostrum, relative length of outer spinules of female P2-P4 EXP, relative length of the setae on the male P5 EXP, armature of male P6, and by the dimorphic male rostrum of C. levis sp. nov. which is similar to that observed for C. retrogressus and C. albuquerquensis. Additionally, a fully illustrated record of the Mexican C. sinaloensis is reported for the first time from Brazilian waters, and C. affinis mongolicus Stěrba, 1968 is given full species status.
Zootaxa, 2015
A new species of copepod, Colobomatus stelliferi n. sp., belonging to the cyclopoid family Philichthyidae Vogt, 1877 is proposed based on female specimens collected from the mandibular canals of three species of sciaenid teleosts: Stellifer brasiliensis (Schultz) (type-host), S. rastrifer (Jordan) and S. stellifer (Bloch), collected in Caraguatatuba Bay, State of São Paulo, Brazil. The new species can be distinguished from its closest congeners by the absence of lateral processes in the genital somite, the presence of one cephalic process in the cephalosome and one pair of dorso-lateral processes on the fused pedigerous somites. This is the first species of Colobomatus Hesse, 1873 described as parasites of species of the teleost genus Stellifer.
A new species of the genus Polyascophorus George, 1998 (Copepoda, Harpacticoida, Ancorabolidae), collected from the Grussaí Canyon (Campos Basin, Brazil, South Atlantic), is described in the present contribution, and increases the number of Polyascophorus species to three. A detailed phylogenetic analysis reveals that Polyascophorus monoceratus sp. nov. shares the following generic apomorphies: (i) lateral posterior cephalic processes bifurcate, (ii) significant diminution of leg 1 endopod, (iii) furcal rami rounded on outer apical margin, and (iv) furcal apical setae IV, V, VI displaced to inner apical edge of furcal ramus. Within the genus, P. monoceratus sp. nov. has five derived characters that justify its establishment as a distinct species: (a) first abdominal somite (genital double-somite in female) with single cuticular process dorsally at posterior margin, (b) branches of female lateral bifurcate cephalic processes of the same size, (c) furcal seta VII plumose on distal half, (d) male leg 1 lacking endopod and (e) apical setae of third exopodal segment of second leg bare and geniculate. While P. gorbunovi and P. martinezi George, 1998 were collected from arctic areas, the finding of P. monoceratus sp. nov. off Brazil extends the generic distributional range to the South Atlantic ocean. A key to the species is provided.
ZooKeys, 2009
A new genus of Ectinosomatidae (Copepoda, Harpacticoida) from sublittoral sediments in Ubatuba, São Paulo State (Brazil), an updated key to genera and notes on Noodtiella Wells, 1965 Citation: Kihara TC, Huys R (2009) A new genus of Ectinosomatidae (Copepoda, Harpacticoida) from sublittoral sediments in Ubatuba, São Paulo State (Brazil), an updated key to genera and notes on Noodtiella Wells, 1965. ZooKeys Abstract Both sexes of a new genus and species of Ectinosomatidae (Copepoda, Harpacticoida) from sublittoral sediments collected on the inner continental shelf in Ubatuba, São Paulo State (Brazil) are described in detail. Chaulionyx gen. n. (type species: C. paivacarvalhoi sp. n.) diff ers from all known genera in the presence of a conspicuous bifi d spine on the prehensile P1 endopod. It can be diff erentiated from other genera with a prehensile endopod (Halophytophilus Brian, 1919; Bradyellopsis Brian, 1925; Klieosoma Hicks & Schriever, 1985) by the presence of distinctive subrectangular middorsal pores on the urosomites and the unarmed male sixth legs. Th e genus Lineosoma Wells, 1965 is recognized as a paraphyletic taxon and relegated to a junior subjective synonym of Noodtiella Wells, 1965. Arenosetella pectinata Chappuis, 1954a is removed from its fl oating position in Ectinosomoides Nicholls, 1945, transferred to the genus Noodtiella as N. pectinata comb. n. and considered the senior subjective synonym of N. toukae Mitwally & Montagna, 2001. Dichotomous keys are provided for the identifi cation of the 18 valid species of Noodtiella and the 21 valid genera of the family Ectinosomatidae. Halophytophilus aberrans Wells & Rao, 1987 is placed species incertae sedis in the family.
Eirinicaris antonioi gen. et sp. n. (Parastenocaridinae) is described from the Brazilian rocky savannas, an ecosystem under heavy anthropogenic pressure. The subfamily is distributed worldwide, with representatives in Africa, Asia, Australia, Europe, and North America. This is the first time a non-Remaneicaris Parastenocaridinae is described from a Neotropical region indicating that Parastenocaridinae species were already present in a vast geographical area, before the split of the Gondwana. The new taxon is included within the subfamily Parastenocaridinae based on the following characters: 1) segments 5, 6, and 7 of the male antennules forming a functional unit for clasping the female; 2) segment 7 with small process at the inner margin, forming an incipient " pocket-knife " structure with segment 6; 3) last segment pointing medially when closed; 4) the endopod of female leg 3 one-segmented and spiniform, without distal seta; 5) the apophysis and terminal seta of the exopod of male leg 3 are fused; 6) the genital field is rectangular and much broader than the height in the female; 7) the group of three lateral setae I, II, and III of the furca and the dorsal seta are situated at the same level in the female; and 8) the basis of leg 1 has an inner seta. The new taxon can be distinguished from all other Parastenocaridinae genera by the unique sexually dimorphic telson and furca. In the male, the dorsal seta is inserted at the midlength of the furca and setae I, II, and III are displaced anteroventrally. A phylogenetic analysis of the subfamily Parastenocaridinae is given based on the description of the type species of each genus and available descriptions of all Parastenocaridinae species. Eirinicaris gen. n. is the sister taxon of a clade formed by Kinnecaris and Monodicaris, sharing with them the long male and female leg 5 with a long spiniform process, and with Kinnecaris, a distal pore on the spiniform process.
Zoosymposia
In Brazil, knowledge on copepods of the order Siphonostomatoida dates back to the late 1800s, with the earliest record concerning parasitic copepods of fish. In contrast, the first record in Brazil of a copepod associated with an unknown marine invertebrate did not appear until 1988, with further studies on this copepod group occurring only during the last 15 years. The aim of this paper is to summarize the knowledge on the diversity of the siphonostome copepods, focusing on the associates of marine invertebrates, and to add new data on the distribution of known species and on the utilization of host species. Finally, an evaluation is carried out on the results and the effort expended during this period, and some objectives are proposed for improving the knowledge of the siphonostome copepods associated with marine invertebrates in Brazil.
Zoological Journal of the Linnean Society, 2003
Members of a new genus and species of harpacticoid copepod crustacean appeared in samples from semi-terrestrial (moist arboreal mosses, wet soil) and aquatic (bromeliad tanks, Sphagnum moss, rock pools, stream) habitats in a remnant of the Atlantic Forest in southeastern Brazil. The new taxon, for which we propose the name Pindamoraria boraceiae sp. nov. , is distinguished by a unique combination of characters, in particular the segmentation and setation pattern of legs 1-4 in both sexes, the structure of leg 5 in the female, and the strongly modified claw of the maxilliped in the male. It most resembles the canthocamptid genera Moraria , Pseudomoraria , Morariopsis and Paramorariopsis. Both previous records of species of Moraria from South America refer to members of Antarctobiotus , which is not considered a member of the Moraria group: Moraria (Kuehneltiella) neotropica Löffler has previously been transferred to Antarctobiotus ; and we propose herein the transfer of Moraria kummeroworum Ebert & Noodt to Antarctobiotus as well. In the New World, the genus Moraria extends only as far south as Honduras; and Pseudomoraria , Morariopsis and Paramorariopsis are Old World genera. The new species from Brazil is therefore the only member of the Moraria group known from South America.
Check List, 2012
The coral reefs of Porto de Galinhas Beach (Pernambuco, Brazil, Northeast region) are among the most important tourist destinations in the country. However, this ecosystem is being increasingly threatened by impacts related to tourism. A first list of the Harpacticoida species found in the phytal of these reefs is provided here. The total of 1501 individuals analyzed included 42 species belonging to 13 families and 32 genera. The dominant species were Parastenhelia spinosa, Amphiascoides sp., Robertsonia knoxi, Ameira parvula, Paralaophonte congenera congenera and Amphiascopsis cinctus. First records for the Brazilian coast include the subspecies Nitocra affinis californica and nine species: Nannomesochra arupinensis, Cletodes aff. pseudodissimilisoris, Esola lobata, Paralaophonte congenera (sensu Yeatman 1962), Sarsamphiascus parvus (sensu Rouch 1962), Rhyncholagena littoralis, Stenhelia gibba, Alteutha roeae and Xouthous purpurocinctus. The high diversity and the isocommunity hypo...
First record of Oithona attenuata Farran, 1913 (Crustacea: Copepoda) from Brazil
Nauplius
Here, we report the first record of the marine copepod Oithona attenuata Farran, 1913, in Brazil, from a costal station near Cabo Frio Island, Arraial do Cabo Municipality, Rio de Janeiro State. Specimens were found during March and May 2011 in zooplankton samples obtained from horizontal hauls using a plankton-net with a 100μm mesh size, and mouth opening of 40 cm diameter.
New species assignable to the formerly monotypic genus Echinopsyllus (Copepoda, Harpacticoida, Ancorabolidae) are described from the continental slope of Campos Basin off Brazil in the south-western Atlantic. Echinopsyllus brasiliensis sp. nov., Echinopsyllus nogueirae sp. nov., and Echinopsyllus grohmannae sp. nov. differ from Echinopsyllus normani Sars, 1909 in the cephalothorax having two instead of three pairs of lateral processes, first pair of dorsal cephalothoracic processes being smaller than second pair, second pair of dorsal cephalothoracic processes branched, and segmentation and setation of the swimming legs. The discovery of new species of Echinopsyllus extends the distributional range of the genus to the southern hemisphere and is further evidence for the formerly unexpected wide genus-level distribution of Ancorabolidae in the world's oceans. The phylogenetic position of Echinopsyllus within Ancorabolinae is discussed.