130 



Records of the Indian Museum. 



[Vol.. VIII, 



Pectinal teeth 12/13. 



Measurements. — Total length 34 mm., carapace 4 mm., tail 18 

 mm., movable finger 4 mm. 



It is with some hesitation that I have ventured to describe this 

 single specimen as the type of a new species, but I ma}^ state, that 

 in deciding to do so I am materially supported b^^ the opinion of 

 Mr. Hirst of the British Museum staff, whose extensive experience 

 of the group entitles his views to great respect. It is closely related 

 to L. rugosus, Pocock, with the type specimen of which, and so far 

 the only known specimen, from Raipur, in the Central Provinces 



3. 



^. 



Fig. I. — Lychas gravelyi, n. sp., i. carapace ; 2. sterua ; 3. chela; 4. vesicle and 

 aculeus; all x 5. 



of India, I have carefully compared it. This specimen, preserved 

 in the British Museum collection, which measures only 22 mm. in 

 total length, is probably immature, and I was unable to determine 

 its sex. In L. rugosus the carapace and terga are much more 

 coarsely granular, while on the other hand in L. gravelyi the 

 sterna are more granular, granules being present on all, whereas 

 they are confined to the last three sterna in L. rugosus. In the 

 latter species all the sterna are coriaceous and present a mat 

 surface, while in L. gravelyi they are membranous and polished 

 centrally. In L. gravelyi the fingers are proportionately longer and 

 the tail thicker, the general appearance being that of a small 

 scorpion with very slender chelfe, but possessing a moderatel}^ stout 



