496 ME. E. I. POCOCK OK THE 



about the 22ad somite. Anal somite moderate in size ; the 

 tergite transversely impressed above, not surpassing the valves ; 

 the valves with their margins a little or scarcely compressed ; 

 sternite triangular. Legs short, with a single seta on the lower 

 edge of each segment. 



c? . Anterior legs thickened ; coxae enlarged, especially those 

 of the sixth pair. 



Copulatory feet as in fig. 5 a. 



Number of segments 50-52. 



Length up to about 75 mm., width 7*8 mm. 



Locality. Cape Haiti in St. Domingo. 



This species appears to differ from the preceding two, which 

 inhabit the same island. 



a. domingensis differs from it in having longer antennae and 

 a differently formed copulatory apparatus ; while It. haitensis, 

 in addition to being mucii larger and differently coloured, seems 

 to have the lateral border of the collum much narrower and 

 more angular. 



*EnraocEicus Duveenoti, Karscli, op. cit. p. 77. 



Colour brown, shining. 



Head smooth; sulcus almost complete; labral pores 2+2. 

 Collum laterally rounded, nearly attaining the edge of the 2nd 

 segment, not noticeably sulcate. 



Segments with complete sulcus, smooth, posteriorly subcanali- 

 culate longitudinally ; inferiorly striate. Scohina extending 

 from the 8th to the 20th. Pores large, in front of the sulcus, 

 the first much deeper than the others. Anal tergite submucro- 

 nate, the base of the angle transversely grooved, not surpassing 

 the valves, which are compressed and have thickened sulcate 

 margins. 



Number of segments 50. 



Length 135 mm. 



Locality. Cuba. 



Ehinoceictjs solitaeiits, sp. n. (PI. XXXVIII. fig. 6.) 

 S ' Colour (in alcohol) black, with red anal valves, red posterior 

 borders to the somites, and yellow legs. 



Head smooth, finely striate transversely, the median sulcus 

 interrupted; labral pores 2 + 2. Eyes separated by a space 

 equal to at least three diameters, consisting of abcat 30 ocelli 

 arranged in six transverse series ; antennce Yevj short, about 



