AUTHEOPOD FAUNA OF THE WEST INDTES. 405 



to recharacterize this specimen as Otocryptops melanostoma, 

 although the original description of this species might well be 

 applied to O. ferrugineus. 



The two species may be readily distinguished thus : — 



a. Border of maxillary coxae straight and dentate ; 



claws of legs spurred &c ferrugineus (Linn.) . 



b. Border of maxillary coxae emarginate and not 



dentate ; claws without distinct spurs &c. . . . melanostoma (Newp.). 



18. ScoLOPOCRTPTOPS MiEESii, Newport. 



Scolopocryptops Miersii, Newport, Tr. Linn. Soc. xix. p. 405 (1845) ; 

 id. Cat. Myr. Brit. Mus. p. 56 (1856). Not Sc. Miersii, Kohlrausch, Arch. 

 Nat. 1881, p. 55 ; Meinert, Proc. Am. Phil. Soc. 1886, p. 181. 



Colour piceo-castaneous, often with a distinctly olivaceous 

 tint ; antennae olivaceous ; legs ochraceo-olivaceous, smooth and 

 shining. Body robust, attenuated posteriorly. 



Sead orbicular, as wide as long, with convex posterior border, 

 somewhat coarsely punctured, without trace of sulci, and with 

 margin simple. 



AntenncB long, attenuated, and slender, composed of 17 seg- 

 ments, of which the basal three are naked, and the rest densely 

 pubescent. 



CoxcB of maxillipedes smooth, shining, punctured like the head, 

 lightly wrinkled in front, the dental border straight, black, with 

 a small tubercular tooth at each end of it ; the tooth on the 

 femoral segment small, tubercular, and simple. 



First tergite with a strong crescentic anterior transverse 

 sulcus, punctured ; the rest of the tergites punctured, from 

 the 8th or 10th bisulcate, and from the 8th with raised margins. 



Sternites without sulci. 



Anal somite small ; tergite punctulate, not sulcate, parallel- 

 sided, its posterior border mesially produced, its lateral borders 

 not elevated ; the pleurce covered thickly and closely throughout 

 with minute pores, the area surrounding the surface of articu- 

 lation of the femur smooth and spiniform above, the pleural 

 process robust and somewhat short, tipped with a single spine ; 

 sternite posteriorly narrowed, twice as wide in front as behind, 

 the angles rounded, the posterior border lightly emarginate. 

 Legs long and slender, smooth, the segments sub cylindrical, com- 

 pressed, the spines on the femur evanescent, very small ; claw 

 spurred at the base. Eest of the legs with spurred claws, a 



