440 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. IX. 



basal segments of the legs of the fourth pair. But from the fact that 

 they are considerably larger in the males than in the females, and from 

 their situation in front of the generative orifice, we may infer that 

 they are sense organs, probably of a tactile nature. The male in 

 Galeodes is also furnished with a cluster of curious spiniform hairs upon 

 the fifth ventral plate of the abdomen, and nearly always has the lower 

 surface of the tarsi of the legs of the fourth pair clothed with somewhat 

 similarly modified hairs. But our ignorance of the function of these 

 two sets of modified hairs is total. Perhaps it need hardly be 

 added that any observations upon the habits, sexual relations, sense 

 organs, &c, of these animals would form a subject for a paper of great 

 interest and of real and permanent value. 



In the accompanying paper the total measurements of the palpi and 

 fourth legs do not include the basal segment, which is immovably united 

 to its fellow of the opposite side. The individual segments of these 

 limbs are taken along their upper sides ; but the length of the 

 mandible is measured along its outer surface from its joint to the apex 

 of the upper jaw. 



Genus Galeodes. 



Key to the identification of the Indian species. 



A. Flagellum of the male with its basal cylindrical portion 



much shorter than its distal expanded portion. Lower 

 fang of the mandible with three or two minor teeth. 

 Palpi and limbs, at least in the adult, not noticeably 

 infuscate, .fatalis (Herbst.). 



B. Flagellum of the male with its basal cylindrical portion 



nearly as long as its distal portion. Lower fang of 



the mandible with one or two minor teeth between the 



large teeth. Palpi and limbs in parts strongly 



infuscate. 



A 1 . Protarsus of the palp fuscous only in its 



proximal half arabs (C. Koch.). 



B 1 . Protarsus of palp fuscous throughout its length. 



A 2 . Male larger ; palp and legs longer ; 



tibia of palp as long as twice the 



width of the head-plate ; tarsus of 



palp black, agilis, sp. n. 



