Crustacea Isopoda collected during the Oc/S "Almirante Saldanha" cruises in southern South America: II. Additions to the species of Serolis (Flabellifera, Serolidae)

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Abstract

This paper reports on part of the species of Serolis Leach, 1818 (Crustacea, Flabellifera, Serolidae) collected from benthic stations performed during cruises of the Brazilian Navy Oc/S "Almirante Saldanha" along southern South America. The species studied are Serolis schythei Lütken, 1858, Serolis polaris Richardson, 1911, Serolis foresti Bastida & Torti, 1970, Serolis uaperta Moreira, 1971, Serolis exigua Nordenstam, 1933 and Serolis elliptica Sheppard, 1933. New localities of occurrence are reported, as well as it is given a com plete synonymy for each species treated, and for Serolis schythei and Serolis exigua also its main distinctive characteristics.

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Species of Serolis (Isopoda, Flabellifera) from southern Brazil

Plínio Moreira (1971)

This paper reports species of Serolis (Isopoda, Flabellifera) occurring on the continental shelf of southern Brazil. Five species are recorded. S. polaris Richardson, 1911 and S. laevis Richardson, 1911, new records from Brazil, are redescribed. S. uaperta sp. n., S. veaperta sp. n. and S. completa sp. n., are new to science. A full description of the female S. laevis is given for the first time. Furthermore, the nonidentity of this species with S. oonvexa Cunningham, 1871, is positively established. Family, generic and specific diagnosis are provided. Ecological and dis tributional notes, as well as a classification key based on adult specimens, are given for each species studied. Faz-se um primeiro levantamento das espécies do gênero Serollis (Isopoda, Flabellifera) ocorrendo na plataforma continental - centro-sul do Brasil, a partir da Lat. 22º00'S. Cinco espécies são registradas. As espécies S. polaris Richardson, 1911 e S. laevis Richardson, 1911, são redescritas, e representam ocorrências novas para o Brasil. As espécies S. uaperta sp . n., S. veaperta sp. n. e S. completa sp.n., são novas para a ciência. A fêmea de S. laevis é descrita pela primeira vez. Confirma-se, também, a validez das espécies S. convexa Cunningham, 1871 e S. laevis como espécies distintas. Fornece-se diagnoses para a família, gênero e para cada espécie estudada, assim como uma chave de identificação elaborada à base de espécimens adultos. À descrição de cada espécie seguem-se observações ecológicas.