AETHEOPOD FAUNA OF THE WEST INDIES. 491 



Legs short, with a single seta below each segment. 



Number of somites 44-47. 



Length 55-60 mm. 



S more slender than $, the anterior coxae not or scarcely 

 produced. 



Locality. Jamaica (P. H. Gosse). 



This species is very closely allied to B. politus of Porath, but 

 seems to differ at least in having the coUum scarcely margined. 

 In politus this plate is described as thickly and deeply marginate. 



*EHi]srociiicirs excisus, Karscli, op. cit. p. 73. 



Colour black, concolorous. 



Eobust. 



Head marked with transverse striae ; labral border so deeply 

 excavated that the excision extends as far as the insertion of the 

 antennae. Pores 2 + 2. ^?i^;(?^^?^ce not surpassing the collum. 



Galium widely rounded, without marginal sulcus. 



Segments not visibly sulcate, smooth, sulcata or striate beneath. 

 Scohina extending to the 26th or 27th rings. Pores large, above 

 the middle of the side, in front of the transverse sulcus and 

 marked by a longitudinal sulcus. 



Anal tergite with its angle rounded, not surpassing the valves, 

 which have their margins widely compressed. 



Number of segments 53. 



Length up to 140 mm. 



Locality. Jamaica. 



*E.HiNOCRicus PAECus, Karsch, op. cit. p. 68. 



Colour fusco-testaceous ; antennae and legs red. 



Body tolerably thick. 



Head smooth, its sulcus interrupted; pores 2 + 2; antennae 

 not surpassing the collum. 



Collum laterally rounded. The segments not visibly sulcate, 

 smooth, the anterior part adorned beneath with abbreviated 

 transverse striae ; dorsum smooth. Scohina on segments 8-12, 

 the posterior margin of segments 7-11 deeply excised; the 

 median and posterior part of the posterior segments more or 

 less evidently canaliculate ; pores large, scarcely above the middle 

 of the side, in front of the sulcus. 



Anal tergite with its posterior angle rounded, not touching 

 the margin of the valves ; valves convex, compressed, not 

 marginate. 



37* 



