Koroga Holmes, 1908

Koroga Holmes, 1908: 502 .—J.L. Barnard, 1969: 346.— Barnard & Karaman, 1991: 494.— Lowry & Stoddart, 2003: 282 (catalogue).

Type species. Koroga megalops Holmes, 1908, original designation.

Included species. Koroga includes one species: K. megalops Holmes, 1908 .

Diagnostic description. Antenna 1 peduncle article 1 without anterodistal lobe; accessory flagellum with an elongate article 1 (at least twice as long as article 2) partially covering callynophore. Antenna 2 with brush setae. Mandible molar a setose tongue with strongly spinose triturating area. Maxilla 1 outer plate a well developed 7/4 crown. Maxilla 2 inner plate slightly shorter than outer plate. Gnathopod 1 subchelate; coxa 1 large, about as long as coxa 2, subrectangular with concave anterior margin; ischium short (length less than 2 × breadth); carpus compressed; propodus margins subparallel. Uropod 2 inner ramus not constricted. Telson notched .

Remarks. Koroga is most similar to Abyssorchomene . Both taxa have a subchelate first gnathopod with a large coxa with a concave anterior margin and with a compressed carpus. Koroga has a large head, most of which is covered by the eye, a very large propodus on gnathopod 1, the inner plate of maxilla 1 is only slightly shorter than the outer plate and the telson is notched.