A new species of Elasmopus (Amphipoda: Hadzioidea: Maeridae) from Suape Harbor, Northeastern Brazilian coast

Abstract

A new amphipod species of the genus Elasmopus Costa, 1853 is described based on material collected from intertidal rocky shore, near the Suape Harbor, coast of the Brazilian state of Pernambuco. The new species may be recognized by the propodus of gnathopod 2 suboval, slightly tapering distally, palmar margin not defined by a stout seta, spine, or palmar corner, with a subdistal blunt tubercle, posterior margin covered by a dense fringe of plumose setae, and posterior margin of basis of pereopod 7 castelloserrate. This is the ninety-fifth species of the genus Elasmopus described worldwide, the most diverse genus in the family Maeridae Krapp-Schickel, 2008, and the eighth species recorded from Brazilian waters. An identification key to Brazilian species of Elasmopus is also provided.

Caribbean Amphipoda (Crustacea) of Panama. Part II: parvorder Hadziidira

“…These amphipods are associated with algae, sponges, and coral rubble at depths of 1.5–15 m. Panamanian specimens agree closely with the description provided by Senna and Souza-Filho (2011) and can be readily distinguished from other species by the shape of the gnathopod 2 propodus.…”

Variação temporal da macrofauna vágil - especialmente Amphipoda - associada a Sargassum furcatum da Ilha de São Sebastião, SP

“…As coletas foram realizadas em quatro costões de hidrodinamismo semelhante, com baixo grau de exposição das ondas (Tab.1). Senna, 2011;.…”

“…A composição de espécies, assim como a densidade, apresentaram diferenças significativas entre as faces. Fatores intrínsecos às algas, perturbações ambientais, como as ressacas observadas, além de fatores antrópicos, como o tráfego (Barnard e Karaman, 1991a;Ruffo, 1982;Bousfield e Jarrett, 2001;Andrade e Senna, 2002;Baldinger e Gable, 2002;Senna e Serejo, 2007;Souza-Filho e Serejo, 2010;Senna, 2011).…”