Description of two new species of the Corophiidae (Amphipoda, crustacea) and register of Laticorophium baconi (Shoemaker, 1934) from Brazilian waters
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Artigo
Date
2009
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Zootaxa
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9
Authors
Valerio-Berardo M.T.
De Souza A.M.T.
De Souza A.M.T.
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Abstract
This study comprises the description of two new species of Corophiidae from Brazilian coast. Apocorophium curumim sp. nov. is characterized by male antenna 1, peduncle article 1 with 1 distal and 1 proximomedial robust setae on ventral margin and 1 robust seta on proximal dorsomedial margin; male antenna 2 pediform, peduncular article 4, distal ventromedial corner with 1 short and 1 long acute process, article 5 with distal flange and 1 acute process on dorsomedial margin; female antenna 1 with 3-4 proximal robust setae on proximal dorsomedial margin; female antenna 2 peduncle article 3 with 2 robust setae on ventrodistal corner, article 4 with 4 robust setae on ventral margin and 6 on dorsomedial margin, article 5 with 1 distal robust seta on ventral margin; male gnathopod 1 dactylus tip little exceeding palm, with 1 tooth on flexor margin; female gnathopod 1 dactylus without tooth on flexor margin; male gnathopod 2 dactylus with 2 teeth unequal in length in flexor margin and uropod 2 rami outer margin with robust setae. Monocorophium josei sp. nov. is characterized by rostrum short; female antenna 1 peduncular article 1 with 1 distal and 1 proximal robust setae on ventral margin, proximal dorsomedial margin with 2 robust setae; male antenna 1 proximal dorsomedial margin with 1 spine; female antenna 2 peduncular article 4 with 1 single short acute process on distoventral corner; male antenna 2 peduncular article 4, ventrodistal margin with 1 large and 1 small spine, peduncular article 5 with small proximal process on ventroanterior margin; gnatopod 1 on female with dactylus reaching to corner of palm, but in gnathopod 1 of male distinctly exceeding the palm; gnathopod 2 dactylus with 3 spines on posterior margin; pereopod 4 basis distinctly broader than pereopod 3 basis and uropod 2 inner ramus outer margin with 1 medial robust seta. Another species, Laticorophium baconi (Shoemaker, 1934) is herein first recorded from the Southwestern Atlantic Ocean. Copyright © 2009.