CHJERILUS. 03 



coarsely granular, a little shorter than caudal segments 1-3, longer 

 than segment 5. Terga very finely coriaceous and granular, with 

 larger granules forming lateral crests on terga 3-6, last terguin 

 more coarsely granular at the sides. Sterna smooth, the last 

 without crests. Tail about three times as long as the carapace ; 

 2nd segment wider than long ; inferior median keels of 1st segment 

 obsolete ; vesicle large, wider than segment 5, more than twice as 

 long as wide, smooth. Uhelcr with hand normally keeled, its width 

 equal to the length of the underhand and less than the movable 

 finger, which is a little shorter than the carapace ; keels on hand 

 finely granular, interspaces smooth. 



Measurements in mm. Total length 16, carapace 2|, tail 7, 

 underhand 1-5, movable finger 2, width of hand 1'5. 



Loc. Burma : Rangoon (Fea). 



Unfortunately the only known representative of G. birmanicus, 

 which will doubtless prove to be a valid species, is the example 

 of which an abridged description is given above. Judging from 

 its size this example is not half grown. Hence it is not possible 

 to form a just estimate of the characters of the adult, and it is 

 superfluous to attempt to locate the species in our synoptical 

 table. 



50. Chaerilus truncatus, Karsch, MT. Munch, ent. Ver. iii, p. 108, 

 1879; Kraep. Jb. Hamb. Wiss. Anst. xi, p. 146, pi. ii, fig. 54, 1894 : 

 id. Tien\, Scorp. etc. p. 100, 1899 (excluding suggested synonymy). 



So far as it goes, the description of this species, published by 

 Kraepelin, is not inapplicable to O. margaritatus, C. granosus, and 

 also perhaps to 0. anthracinus, except as regards the form of the 

 hand. The width of this organ in the male is said to be less than 

 half the length of the underhand, and in the female a little more 

 than half ; whereas in C. margaritatus, C. granosus, and G. anthra- 

 cinus ( <5 , $ ) the width of the hand is much more than half the 

 length of the underhand. The hand of the male of C. truncatus, in 

 fact, seems to resemble that of O. insignis ; but the upper side of 

 the abdomen of the former appears to be much more granular. 

 Presumably also the chelae and tail are shorter, since nothing is 

 said in the description touching their length. 



Loc. Dehra Dun, in the Western Himalayas. 



