OCR Text |
Show 1896.] TERRESTRIAL ISOPOD CRUSTACEANS. 391 sides of the pleon depressed ; processus of the fifth segment widening at the apex. Pleotelson longer than wide, smooth ; sides feebly curved; apex one-third narrower than the basis. Uropoda nearly straight; endopodite extending to two-thirds the length of the pleotelson ; exopodite very small, placed near the middle of the internal edge of the basis (upperside). Colour: dark grey, with a narrow light longitudinal line in the middle of the pereion, and light lineolae on both sides. Dimensions : 9 x 4^ millim. Hab. St. Vincent, Chateaubelais, August. One example. 3. ARMADILLO DUMOEUM, n. sp. Fig. 3. (For lettering, see p. 389.) Body very convex, nearly smooth. Cephalon : prosepistoma nearly plain, fore edge straight. Eyes large ; about 20 ocelli. Antennae very short; first joint of flagellum twice as short as the second. Pereion: first segment with a blunt antero-median tubercle; lateral edges raised on the fore part; coxopodite separated by a cleft extending to the third hind part of the segment (underside). Second segment with a square coxopodite, distinct on its total length (underside). Pleon, telson : pleotelson quite as long as wide ; sides curved ; apex one-third narrower than the basis. Uropoda: basis wide, oblique; endopodite extending to one-third the length of the pleotelson; exopodite very small, placed near the middle of the internal edge of the basis (upper-side). Colour: dark grey or brown, with light dots and lineola? on both sides of the median line (pereion). Dimensions : 8 x 3| millim. Bob. Mustique Island, found by beating brush. |