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 Joeropsis pleurion sp. nov. (gure 7L –N) Type material. HOLOTYPE : USNM 253233, 2.2 mm , sta K-AL-70, algal turf of Halimeda and Gracillaria on reef at, Aldabra, 1 m , 25 February 1989 . PARATYPES : USNM 253234, two 1.4–2.0 mm, sta K-ALD-70, same data as holotype ; USNM 253235, one 1.7 mm , sta K-ALD-13, coralline-encrusted rubble under Thalassodendron seagrass, Aldabra, 6 m , 3 April 1983 . Diagnosis. Rostrum basally broader than long, anterior margin truncate. Lateral margins of cephalon entire. Pereonite 4 with two low, rounded, submedian longitudinal ridges. Lateral margins of pleotelson entire. Uropodal basis with mesiodistal hook. Red-brown transverse band of pigment across posterior half of cephalon, and across pereonite 4. Etymology. The speci c name, from the Latin for ‘rib’, refers to the two rounded ridges on pereonite 4.