Paracallisominae

Horton, Tammy & Thurston, Michael H., 2015, A revision of the genus Paracallisoma Chevreux, 1903 (Crustacea: Amphipoda: Scopelocheiridae: Paracallisominae) with a redescription of the type species of the genus Paracallisoma and the description of two new genera and two new species from the Atlantic Ocean, Zootaxa 3995 (1), pp. 91-132 : 92-93

Subfamily Paracallisominae Kilgallen & Lowry, 2015

Diagnosis. Mandible a non-setose flap or occasionally absent ( Scopelocheiropsis sublitoralis ).

Remarks. The subfamily Paracallisominae can be distinguished from the Scopelocheirinae by the possession of a non-columnar, non-triturative molar that has been reduced to a non-setose, conical structure (the molar appears absent in Scopelocheiropsis sublitoralis ). In their revision of the family Scopelocheiridae, Kilgallen & Lowry (2015) noted that ‘there is still a large knowledge gap in the diversity of deep-sea scopelocheirids’. This paper is an initial attempt to redress this knowledge gap by redefining the genus Paracallisoma , describing two new genera, allocating known species among these genera, and describing two new species belonging to this complex.

Included genera. The Paracallisominae contains nine genera: Anisocallisoma Hendrycks & Conlan, 2003 ; Austrocallisoma Kilgallen & Lowry, 2015 ; Bathycallisoma Dahl, 1959 ; Eucallisoma J.L. Barnard, 1961 ; Haptocallisoma gen. nov.; Paracallisoma Chevreux, 1903 ; Pseudocallisoma gen. nov.; Scopelocheiropsis Schellenberg, 1926 ; Tayabasa Kilgallen & Lowry, 2015 .