Mysidium Dana, 1852

Wittmann, Karl J. & Wirtz, Peter, 2019, Revision of the amphiamerican genus Mysidium Dana, 1852 (Crustacea: Mysida: Mysidae), with descriptions of two new species and the establishment of two new subgenera, European Journal of Taxonomy 495, pp. 1-48 : 6

Mysidium Dana, 1852 , nominotypical subgenus

Diagnosis

Subdivision of the genus Mysidium Dana, 1852 , characterized by three-segmented carpopropodus of third thoracic endopod. Merus of this endopod with non-serrated setae exclusively, with the reservation that this feature is unknown in M. rickettsi Harrison & Bowman, 1987 . Third male pleopod with medial widening at 40–60% distance from basis. Sympod of fourth male pleopod without setae on rostral face. Its exopod four-segmented; the two proximal segments without setae; the two distal segments each with one unbranched modified seta. Telson entire, or at most with a rounded, shallow indentation.

Distribution

Littoral and sublittoral waters of Atlantic and Pacific coasts of subtropical to tropical America (32° N to 24° S), including Caribbean, Gulf of Mexico and Gulf of California.