New species and records of Asellota from the Indian Ocean (Crustacea: Peracarida: Isopoda) Kensley, B Schotte, M Journal of Natural History 2002 36 1421 1461 6ZKVY Kensley & Schotte, 2002 Kensley & Schotte 2002 [435,699,1389,1413] Malacostraca Stenetriidae Stenetrium Animalia Isopoda 32 1452 Arthropoda species assumentum sp. nov.   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. 1995-09-26 ZMUC Tanzania Bawe Island 32 1452 1 holotype ZMUC Tanzania 32 1452 1 paratype 1995-09-19 USNM Tanzania 7 Changuu Island 32 1452 USNM 253292 1 paratype