Mysidium (Occimysidium), Wittmann & Wirtz, 2019

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 : 25-26

Occimysidium Wittmann subgen. nov.

urn:lsid:zoobank.org:act:EE9F05D3-29B5-4B95-BC0D-2A6756AAECE5

Type species

Mysidium pumae Ortiz, Hendrickx & Winfield, 2017 , by monotypy.

Etymology

Noun in nominative singular with neutral ending, formed by amalgamation of the Latin noun ‘ occidens ’ with the generic name Mysidium , referring to the occurrence on the west coast of America.

Diagnosis

Subdivision of the genus Mysidium Dana, 1852 , characterized by two-segmented carpopropodus of third thoracic endopod; merus of this endopod without serrated setae. Third male pleopod with distinct endite at about ¾ distance from basis of medial margin. Sympod of fourth male pleopod without setae on rostral face. Its exopod four-segmented; basal segment with 0–1 seta, second segment without seta, subterminal segment with bifid modified seta, terminal segment with undivided modified seta. Telson entire (not incised).

Distribution

As for type species.