Taxonomy of the genusMeterythrops(Crustacea: Mysida: Mysidae), with a redescription ofM. microphthalmusand descriptions of two new species

Abstract

A taxonomic revision of the genus Meterythrops is provided, including a redescription of M. microphthalmus and newly reported characters of M. japonicus, M. pictus, and M. robustus. Adult males of all species (excluding M. japonicus and M. megalops because no adult males of these species have been collected) have pleopods with modified setae, which are found on the fifth pleopod in M. microphthalmus and M. robustus, and on the fourth and fifth pleopods in M. pictus. Two new species, M. intermedius and M. tenuispinis, from Alaskan and East Asian waters, respectively, are also described. Males of both species also have modified setae on the fifth pleopod. Meterythrops microphthalmus and M. robustus are recorded for the first time from Alaskan waters and Japanese waters, respectively.

The Mysidae (Crustacea, Mysida) of the ANDEEP I–III expeditions to the Antarctic deep sea with the description of twelve new species, establishment of four new genera and with world-wide keys to the species of Erythropinae and Mysidellinae

“…Tattersall, 1909 (1 species) -Eye bar without or with a very small median depression; telson trapezoid, terminally rounded ....... .................................................................................... Michthyops W.M. Tattersall, 1911 (3 species)Key to the genera of the tribus ErythropiniModification of ♂ pleopods updated fromFukuoka & Murano (2006).…”