1896.] 



TBHllBSTKIAL ISOPOD CKUSTACBANS. 



393 



flagelluin three times shorter than the second. Pereioii: first 

 segment with a bhiiit antero-median tubercle ; lateral edges 

 raised ; coxopodite distinct and divergent on the half hind part of 

 the edge (underside). Coxopodite of the second segment forming 

 a tooth-like processus. Pleon, telson : pleotelson as wide as long, 

 with a blunt double tubercle near its basis; sides curved ; apex 

 nearly as wide as the basis ; endopodite reaching to two-thirds 

 the length of the pleotelson ; exopodite minute, placed near the 

 middle of the internal edge of the basis. Colour : dark grey, with a 

 light median line and light lineolse on the sides ; antennae whitiaji. 

 Dimensions : 14 x 6 millim. 



Kg. 5. 



(For lettering, see p. 389.) 



Hah. Becquia Island (June), ravine, damp ground, under rotting 

 leaves; Grenada; Balthazar (windward), 260 feet, cocoa orchard, 

 under rotting leaves. > . . 



6. AbMABILLO SILTAEUM, n. sp. 



Body convex, slightly tuberculated on the pereion. Cephalon : 

 prosepistoma plain. Eyes large; about 20 ocelli. Pereion ; first 

 segment with a blunt, hardly perceptible antero-median tubercle ; 

 lateral edge forming a narrow raised border ; coxopodite distinct 

 on the entire length of the edge, and divergent on the half hind 

 part. Coxopodite of the second segment forming a tooth-like, 

 divergent processus. Pleon, telson : pleotelson wider than long, 

 with a small, double, longitudinal ridge near the basis ; sides curved 

 near the apex ; apex one-fourth narrower than the basis. Uropoda ; 



