Paz-Ríos, C. E.; Pech, D. (2019). Gammaropsis elvirae sp. nov., a widely distributed amphipod (Amphipoda: Photidae) in the Yucatan Shelf, with ecological comments and a key for the genus in tropical America. Zootaxa. 4555(3): 359.
Gammaropsis elvirae sp. nov., a widely distributed amphipod (Amphipoda: Photidae) in the Yucatan Shelf, with ecological comments and a key for the genus in tropical America
Zootaxa
4555(3): 359
Publication
Available for editors
Gammaropsis elvirae sp. nov. is described and illustrated here, as a new species of the family Photidae Boeck, 1871, occurring
on sites widely distributed in the soft-sediment habitats from the Yucatan shelf, southern Gulf of Mexico. This new
species differs from all other congeners by a unique set of characteristics: lateral cephalic lobes rounded; outer lobes of
lower lip with one cone on each lobe; gnathopod 1 propodus longer than carpus; gnathopod 2 propodus enlarged with
small convoluted processes on posterior margin and palmar angle undefined; gnathopod 2 dactylus short, less than one
half in length of propodus; dense setation on basis, carpus, and propodus of gnathopod 2; epimeral plates 1–3 rounded;
inner ramus of uropods 1–3 longer than outer ramus; and telson emarginated. Ecological comments on spatial distribution
and associated environmental variables are included, as well an identification key to the genus in tropical America.