Dolichiscus Richardson, 1913

Poore, Gary C. B. & Black, Jay R., 2024, Four new species of Valvifera (Crustacea: Isopoda) from ANDEEP cruises in the Weddell Sea, Zootaxa 5477 (3), pp. 295-314 : 305

Dolichiscus Richardson, 1913

Remarks: Dolichiscus is a genus of 25 species, most from the Southern Ocean but also occurring in the Western Atlantic and Southwestern Pacific ( Boyko et al. 2024; Kussakin & Vasina 2001). The genus occurs from 4 m ( Kussakin & Vasina 1980) to over 4000 m deep ( Schultz 1981). The genus is diagnosed by an antennal flagellum of nine or more short articles, the basis of pereopod 4 with a strong distal setal group, its propodus with a row of long setae, and the male pleopod 1 having a groove opening on a distolateral triangular lobe of the exopod ( Poore 1998). Wägele (1991) diagnosed the genus slightly differently relying on the pleotelson having a dorsomedian keel ending in a spine, and the long spindly legs. Wägele provided a key to ten Antarctic species and three of Paradolichiscus Schultz, 1981 , treated here as a junior synonym.