A new species of Cypriconcha Sars (Crustacea: Ostracoda) from high mountain wetlands of Argentina Author Díaz, Analía R. Author Lopretto, Estela C. text Zootaxa 2009 2291 51 64 journal article 10.5281/zenodo.191435 051ed050-3789-48bb-af4b-38f9d86f561b 1175-5326 191435 Key to the known species of Cypriconcha 1 Masticatory surface of mandible with molar-shaped processes ................................................................................... 2 - Masticatory surface of mandible without molar-shaped processes .................................................................... C. alba 2 Length of valves attaining to 3.4 mm .......................................................................................................................... 3 - Length of valves between 3.4–4.2 mm ; freshwater or saline ...................................................................................... 5 3 Carapace sub-quadrate in shape, dorsal margin straight; duplicature broad, line of concrescence well defined; radial pore canals abundant ................................................................................................................................................... 4 - Carapace elongate, bean-shaped in lateral view; dorsal margin concave; without radial pore canals .......................... ........................................................................................................................................................ C. hypsophila n. sp. 4 Anterior end of carapace rounded, posterior end slightly rounded to truncated; uncommon, found only in freshwater ............................................................................................................................................................. C. pseudoingens - Both anterior and posterior ends rounded, not truncated; restricted to playa lakes ....................................... C. ingens 5 Carapace regularly rectangular in shape and strongly arched posterodorsally ............................................... C. steveni - Carapace subrectangular in side view, anterior and posterior acutely pointed ............................................................ 6 6 Natatory setae of An2 nonplumose and not reaching the apical claws ................................................. C. gnathostoma - Natatory setae of An2 reaching at least the apical claws.............................................................................................. 7 7 Length of anterior seta of caudal ramus less than one-half length of posterior claw ................................... C. barbata - Length of anterior seta of caudal ramus at least half length of posterior claw ................................................ C. macra