New species and records of Asellota from the Indian Ocean (Crustacea: Peracarida: Isopoda) Author Kensley, B Author Schotte, M text Journal of Natural History 2002 36 1421 1461 journal article 1464-5262 Stenetrium assumentum sp. nov. (gure 19) Type material. HOLOTYPE : ZMUC , 4.9 mm , sta CRU-1904, intertidal reef at, Bawe Island , Zanzibar , 26 September 1995 . PARATYPES : ZMUC , two 3.5–4.8 mm , one ovigerous 6.0 mm , USNM 253292 , one 4.5 mm , sta CRU-1890, coral heads in sand, Changuu Island , Zanzibar , 7 m , 19 September 1995 . Diagnosis. Cephalon with strong anterolateral and antennal teeth; rostrum basally broader than long, anterior margin straight. Eyes reniform. Scattered reticulation of red-brown pigment on cephalon, pereonites and pleotelson, latter with large strongly pigmented middorsal patch at base. Pereopod 1 of male, carpus not produced posterodistally; propodus expanded, with strong tooth demarcating palm, followed by two small teeth, deep U-shaped emargination plus single tooth close to articulation of dactylus; latter with about 15 small setae on cutting margin. Operculum of female roughly pentagonal, 1.5 times longer than wide. FIG. 19. Stenetrium assumentum sp. nov. : (A) male dorsal view; (B) male pereopod 1; (C) female pereopod 1; (D) male pleopod 2; (E) male pleopod 1; (F) female opercular pleopod 2. Etymology. The speci c name, from the Latin assumentum , a patch, refers to the strong blob of pigment at the base of the pleotelson.