Genus Andaniotes Stebbing, 1897.

• Stebbing, 1897: 30

• Stebbing, 1906: 96

• Schellenberg, 1931: 51

“Sideplate 4 slightly deeper than broad, overlapping 5th and part of 6th. Peraeon segment 1 subequal to 2nd and 3rd combined. Eyes wanting. Antennae subequal. Antenna 1, 1st joint peduncle very thick, longer than 2nd and 3rd combined, flagellum slender, with 4 joints, 1st longer than 1st of peduncle, 4th spiniform; accessory flagellum very small, 1-jointed Antenna 2, ultimate joint of peduncle shorter than penultimate, flagellum short. Epistome slightly carinate. Upper lip broader than deep, faintly emarginate. Lower lip, lobes narrow, very widely dehiscent, with minute upright spine at apex. Mandible, cutting edge straight, smooth, rather broad, tooth-like secondary plate on left mandible. Maxilla 1, inner plate with 7–11 plumose setae, outer with 9 spines, palp 1-jointed, with 7 spines. Maxilla 2, inner plate broad, densely fringed with spines and plumose setae, outer narrow, with 9 setae. Maxillipeds, inner plates very broad, with 3 spine-teeth but not many setae, outer not nearly reaching end of palp's 2nd joint, fringed with short spines. Gnathopod 1, 2nd joint broad, especially in male, 6th abruptly narrowed distally, rather shorter and a good deal narrower than the 5th. Gnathopod 2 slender throughout, 3rd joint elongate, 5th and 6th joints subequal, 6th narrowly oval. Peraeopods 1–5, 4th joint decurrent. Peraeopod 4, 2nd joint oblong, not very widely expanded. Peraeopod 5, 2nd joint very broadly oval, as long as rest of limb. Uropod 1–3 m male, peduncle robust, rami very short; uropod 1, outer ramus thick, inner thin; uropod 3, rami minute, outer 2-jointed, nearly twice as long as inner. In the female uropods 1–3, peduncle less robust, rami all slender, in uropod 3 subequal, nearly as long as peduncle. Telson oval, cleft nearly to middle.” —Stebbing, 1906.

Schellenberg comments that the spination and setation numbers must be deleted from this diagnosis since, with the exception of those of the 1st maxilla outer plate, they are variable and thus do not belong here. Also, in A. corpulentus the 6th pleon segment is not longer than the 4th or 5th as in Stebbing's diagnosis but only equally as long. I have made the latter correction but for lack of sufficient evidence on setation and spination I have left the diagnosis otherwise unaltered.