Lysianassidae

Senna, André R. & Serejo, Cristiana S., 2008, Amaryllididae and Lysianassidae (Amphipoda: Lysianassoidea) from off the central coast of Brazil (11 ºS – 22 ºS), with descriptions of three new species, Zootaxa 1718, pp. 45-68 : 65-66

Key to Lysianassidae species recorded from Brazil

1 Epistome and upper lip separate, upper lip strongly dominant in size and projection, rounded. Coxa 1, large and visible. Gnathopod 1 simple, carpus and propodus subequal in size, dactylus small. Uropod 3, peduncle elongate, rami subequal in size, outer ramus 1-articulate. Telson entire ................ Lysianassa (2)

- Different from the above..............................................................................................................................3

2 Antenna 2 elongate, reaching 2/3 of body length. Basis of pereopod 6 with posterior margin rounded and serrate .................................................................................................... Lysianassa brasiliensis Dana, 1853

- Antenna 2 reaching 1/3 of body length. Basis of pereopod 6 with posterior margin slightly concave and

smooth .................................................................................................................. Lysianassa danai sp. nov. 3 Antenna 2 much longer than antenna 1, subequal to the body length. Pereopod 3, merus, carpus and propodus, posterior margin with plumose setae in both sexes ............................. Bonassa brasiliensis sp. nov. - Antenna 2 subequal in length or shorter than antenna 1, antennae 1 and 2, much shorter than body length. Pereopod 3, merus, carpus and propodus, posterior margin without plumose setae...................................4

4 Antenna 1 longer than antenna 2. Upper lip with dorsal margin truncated. Pereopod 6, basis with posterior margin convex ................................................................................... Schoemakerella nasuta ( Dana, 1853)

- Antenna 1 subequal in length to antenna 2. Upper lip with dorsal margin rounded. Pereopod 6, basis with posterior margin slightly concave .......................................................... Lysianopsis concavus Senna, 2007