André R. Senna

Amphibious shelter-builder Oniscidea species from the New World with description of a new subfamily, a new genus and a new species from Brazilian cave (Isopoda, Synocheta, Styloniscidae).

The new subfamily Iuiuniscinae, Styloniscidae, is erected for the new genus Iuiuniscus and the new species I. iuiuensis, which is described from cave of the State of Bahia, Northeastern Brazil. A special ecological character is shown here for the first time for a New World Oniscidea: the construction of mud shelters. An introduction addressing the systematics of Synocheta with emphasis on Styloniscidae Vandel, 1952 is provided, as well as general comments about the dependence of water in some Oniscidea and ecological traits of amphibious Synocheta. The problems referring to nomenclature, taxonomy and the interrelationships in Styloniscidae are discussed.

First record of Cladocera (Crustacea: Chydoridae) from Parque Nacional do Itatiaia, Southeastern Brazil

Surveying the fauna in conservation areas is an important strategy to recognize patterns of richness and endemism and to reduce gaps related to geographical distribution. This study presents the first record of cladocerans in the Parque Nacional do Itatiaia, Southeastern Brazil. Alona ossiani, Alona guttata, Alona iheringula, Alona yara , and Briospylus repens were observed in different environments. Here, we provide the taxonomic status and geographic distribution of each species observed in the Parque Nacional do Itatiaia.

A new species of Bogidiella (Crustacea: Amphipoda: Bogidiellidae) from bore wells in Andhra Pradesh, Southern India

A new amphipod species of Bogidiellidae Hertzog, 1936 is described and illustrated based on specimens collected from bore wells in the state of Andhra Pradesh, Southern India. The new species is closely related to those belonging to a group of Bogidiella species with inner rami of pleopods reduced or absent. Bogidiella totakura sp. nov. differs from all the other species in the group mainly by the shape, size and ornamentation on gnathopods and telson. This is the second Indian species of Bogidiella.

New genera and species of Urothoidae (Amphipoda) from the Brazilian deep sea, with the re-assignment of Pseudurothoe and Urothopsis to Phoxocephalopsidae

Box-corer samples taken between 700 and 2000 m depth on the slope of the Campos Basin, southeastern Brazilian deep sea, provided the material for the description of two new genera in the family Urothoidae, Carangolioides gen. nov. and Coronaurothoe gen. nov., and three new species: Carangolioides castellatus sp. nov., Carangolioides hamatus sp. nov. and Coronaurothoe rotunda sp. nov. Carangolioides gen. nov. differs from other urothoid genera by the presence of a distolateral projection on the outer lobes of the lower lip and the distally truncated margin of the upper lip, while Coronaurothoe gen. nov. differs by the mandibular molar being triturative with a distal crown of stout setae. In this study, we provide detailed descriptions and illustrations of the new taxa. An identification key to genera of Urothoidae is also provided. The genera Pseudurothoe Ledoyer, 1986 and Urothopsis Ledoyer, 1967 are removed in this paper from Urothoidae to Phoxocephalopsidae. http://zoobank.org/urn:lsid:zoobank.org:pub:18863639-4F10-4E25-9C62-8B1047538046

A new aquatic species of the oribatid mite genus Mucronothrus (Acari, Oribatida, Trhypochthoniidae) from Brazil

The oribatid mite genus Mucronothrus is recorded for the first time in Brazil. A new species, Mucronothrus braziliensis sp. nov. is described from macrophytes in a cool (12.5ºC) spring on the Campo Belo River spring and Brejo da Lapa reservoir, National Park Itatiaia of Brazil, on the basis of adults and tritonymphs. This species is morphologically similar to Mucronothrus nasalis (Willmann) and Mucronothrus willmanni Norton, Behan-Pelletier & Wang; however, it differs from both by the morphology of the bothridial setae, length of notogastral setae cp and position of epimeral setae 2a. An identification key to known species of Mucronothrus is provided. http://zoobank.org/urn:lsid:zoobank.org:pub:3132213A-19F1-42B2-B37B-2483264FAAC4

A new genus and species of Melitidae (Crustacea: Amphipoda: Hadzioidea) from Brazilian waters

A new genus and species of the Eriopisella group are described from Brazilian waters. The new genus is monotypic and closely related to the melitid genus Netamelita Barnard, 1962, but is distinguishable from the latter by the propodus of gnathopods 1 and 2 that is wedge-shaped, subtriangular and has the palm longer than posterior margin. This is the first amphipod of the Eriopisella group reported from Brazil.

New records of Anthalona acuta Van Damme, Sinev & Dumont 2011 and Anthalona brandorffi (Sinev & Hollwedel, 2002) in Brazil, with description of a new species of the simplex-branch (Crustacea: Cladocera: Chydoridae).

The range of geographical distribution of Anthalona acuta Van Damme, Sinev & Dumont 2011 and Anthalona brandorffi (Sinev & Hollwedel, 2002) in Brazil has increased by almost 2000 km to the south. New records of Anthalona verrucosa verrucosa (Sars, 1901) were also added. Populations of Anthalona brandorffi from Central Brazil showed a peculiar morphological variation, with some individuals having only a single denticle on the labral keel. A new species of the simplex-branch, Anthalona neotropica sp. nov., was described based on Brazilian material, and this is the first taxon of this branch registered in the Neotropics. It differs from Anthalona simplex Van Damme, Sinev & Dumont 2011, a Central African species, in the morphology of underneath sack of the lateral head pores, length of IDL setae and armature of first flaming-torch seta of limb IV. It could be distinguished from Anthalona sanoamuangae Sinev & Kotov, 2012 (distributed through the South- East Asia) by the morphology of the main head pores, length of IDL setae and armature of the pecten of postabdominal claw. Anthalona neotropica sp. nov. seems to have a benthic/hyporheic habit. All studied species have a wide geographical distribution and could be confused with Anthalona verrucosa Sars, 1901, thus at least some if not all previous records of this species on the continent must be revised.

Spelaeogammarus titan, a new troglobitic amphipod from Brazil (Amphipoda: Bogidielloidea: Artesiidae).

A new troglobitic species of the amphipod family Artesiidae Holsinger, 1980 is described from a cave in the municipality of Santa Maria da Vitória, in the Brazilian state of Bahia, northeastern Brazil. Spelaeogammarus titan sp. nov. differs from the others in the genus by its body length, rising up to 18.3 mm, the antenna 1 with accessory flagellum 6-articulate, propodus of the first gnathopod 1.8 X longer than basis, the largest in the genus, coxa 5 with posterior lobe slightly concave, inner ramus of pleopods with 10 to 13 setae, outer ramus of uropod 3 with 22 simple setae, and telson with 1 apical plus 3 subapical stout setae in each lobe. With this study, the knowledge of Spelaeogammarus is improved to 5 species, all of them exclusive to caves in the northeastern Brazilian state of Bahia. A comparative table with the diagnostic characters of the species of Spelaeogammarus is provided.

A new species of Boca Lowry & Stoddart, 1997 (Amphipoda: Lysianassoidea: Aristiidae) from a mesophotic coral ecosystem off Puerto Rico, Caribbean Sea.

A new species of the genus Boca Lowry & Stoddart, 1997 is described from a mesophotic coral ecosystem off southwestern Puerto Rico, in the Caribbean Sea. The new species is easily recognized from the others in the genus mainly by the following characters: (1) maxilliped, inner plate with 2 long apical simple setae; palp, articles slender, subequal in length; (2) gnathopod 1, propodus slightly elongate, about 2.5 × longer than wide, and palm extremely acute, quite long and distinctly demarked by a robust seta at the palmar corner; (3) gnathopod 2, carpus slightly elongate, about 3.7 × longer than wide; (4) pereopod 5, basis widely expanded posteriorly, posterior margin rounded and smooth, and posteroventral lobe weakly developed. We also present a key to world species of Boca. This is the fifth species of Boca from worlds oceans and the first record of the genus from Puerto Rico.

A new species of Cymadusa Savigny, 1816 (Crustacea: Amphipoda: Ampithoidae) from northeastern Brazil

A new species of the amphipod family Ampithoidae Stebbing, 1899 is described from the northeastern Brazilian waters. The new described taxon is grouped in the genus Cymadusa Savigny, 1816, since it presents all the diagnostic characteristics of the genus. The examined material was collected by scuba diving in the Rocas Atoll, off Rio Grande do Norte state coast, Camamu Bay and Todos os Santos Bay, Bahia state. The new species described here is close to C. filosa Savigny, 1816, type species of the genus, by presenting anterior margin of gnathopod 1 poorly setose, male gnathopod 2 densely setose, with palmar corner not defined by a spine and dactylus subequal in length to palm, being considered part of the C. filosa complex. Among the species of this complex, the one which most resembles to the new taxon is C. imbroglio Rabindranath, 1972, which is distinguished by the absence of both the trapezoid process in the palm and spine at the palmar corner in the gnathopod 2. This is the second species of the genus Cymadusa recorded from Brazilian waters.