First record of the genus Limnoporeia Fearn-Wannan, 1968 (Crustacea: Amphipoda: Phoxocephalidae) from the Atlantic Ocean, with description of a new species

摘要

A new species of Limnoporeia is described. The material examined was collected on the scope of the Mini Biological Trawl Project, off southeastern Brazil's coast on the states of Rio de Janeiro and Sao Paulo, ranging from 34 to 72 metres depth. Limnoporeia infirmichelata sp. nov. is diagnosed by: head with short rostrum; gnathopods weakly chelate; gnathopod 1, propodus wider than long; gnathopod 2, basis posterodistal corner with a long plumose seta; telson with 1 stout seta on each lobe. This is the first record of the genus for the Atlantic Ocean. An identification key is provided for all world species of Limnoporeia.