AETHEOPOD FAUNA OF THE WEST INDIES. 501 



striolate at the sides and below, the area behind longitudinally 

 striate below ; the scobina small, but extending at least to the 

 20th segment ; sterna striate. 



Pores situated in front of the sulcus, but in a fold of it. 



Anal tergite produced into an acutely angular, blunt process, 

 which just surpasses the valves ; valves with margins strongly 

 compressed ; sternite triangular. 



Legs short, with a single seta below each segment. 



(S . Thinner than the female and with longer legs ; the coxae 

 of the anterior legs slightly produced. 



Number of segments about 44. 



Length of male and female about 50 mm., width of male 4, 

 of female 4'3 mm. 



Locality. Dominica ( G. A. Mamage). 



EniNOCRicrs grammosticttjs, sp. n. 



Colour very much as in i2. serpentinus, but more pronounced, the 

 median dorsal dark band and the two dorsal flavous bauds being 

 more clearly defined. The segments nearly smooth, minutely 

 punctulate, with scarcely a trace of the transverse sulcus, the 

 posterior portion weakly striate longitudinally below, the 

 anterior portion adorned with obliquely set short striolse about 

 up to the pore ; the pore minute, isolated, the sulcus obliterated 

 near it, with a transverse striola crossing the dorsum in front of 

 the position of the pore, this stria becoming fainter towards the 

 hinder extremity of the body. Sterna striate. Scohina present. 

 The posterior segments obsoletely wrinkled longitudinally. Anal 

 somite small, the tergite produced into an acute process, which 

 projects beyond the summit of the valves ; valves slightly com- 

 pressed, not marginate. 



Legs short, the basal segments of the anterior ones compressed 

 and cariuate. 



Number of segments 40-43. 



Length up to 45 mm., width 4*5 mm. 



Locality. St. Lucia (G^. A. Ramage). 



Although resembling R. serpentinus very closely in colouring, 

 this species may be recognized by its more robust build, fewer 

 segments, longer tail, &c. 



Ehinoceictjs seepentinus, sp. n. (PI. XXXVIII. fig. 9.) 

 Colour variable, slate-grey above, with a yellow spot on each 



