teubbstkial isopod ckubtacbans. 



391 



1896.] 



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. TJropoda 

 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. Abmadiilo dumobum, n. sp. 

 Fig. 3. 



3a 



(For lettering, see p. 389.) 



Body Tery convex, nearly smooth. Cephalon : prosepistoma 

 nearly plain, fore edge straight. Eyes large ; about 20 ocelli. 

 Antennce 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 tlian 

 the basis. Uropoda : basis wide, obUque ; 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 lineolas 

 on both sides of the median line (pereion). Dimensions: 8x3| 

 millim. 



Bah. Mustique Island, found by beating brush. 



