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Type: Articles
Published: 2009-08-31
Page range: 55–68
Abstract views: 125
PDF downloaded: 12

Description of two new species of the Corophiidae (Amphipoda, Crustacea) and register of Laticorophium baconi (Shoemaker, 1934) from Brazilian waters

Universidade Presbiteriana Mackenzie, CCBS, Rua da Consolação 896, CEP 01302-907, São Paulo, SP, Brasil
Universidade Presbiteriana Mackenzie, CCBS, Rua da Consolação 896, CEP 01302-907, São Paulo, SP, Brasil
Crustacea Corophiidae Monocorophium Apocorophium new species Brazilian coast

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.

References

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