CHAHMUS. 31 



closely granular, and the lower surface of the 4th is somewhat 

 thickly granular both in the middle and at the sides. Moreover 

 in B. pallidus the median lateral keel extends as a granular crest 

 at least throughout the posterior half of the 2nd and 3rd segments; 

 in B, flavescens it is practically absent on all the segments except 

 the 1st ; lastly the vesicle is relatively smaller in B.flavescens. 



Length 27 mm. 



Loc. Karaghora in Kattywar (Bull-ley). 



16. Butheolus bicolor, Pocock, Jour. Bom. N. H, Soc. xi, p. 108. 1897 

 Kraep. Tierr., Scorp. etc. p. 36, 1899. 



Colour : upper side of trunk deep bluish green, sometimes in- 

 clining to deep brown ; ventral surface yellowish or yellowish 

 green ; 4th and 5th segments and vesicle of tail also deep bluish 

 green, but the 1st, 2nd, and usually also the 3rd, yellowish brown, 

 the 3rd sometimes as dark as the 4th, and the 1st and 2nd some- 

 times very dark brown ; legs mostly clear yellow, with greenish 

 femora ; humerus and brachium of chela also tinted with greenish 

 black, hand and fingers usually paler. Carapace coarsely granular 

 throughout, the ridges over the eyes smooth above, groove defining 

 tubercle behind shallow as in B. pallidus. Terga coarsely granular 

 throughout, and with the exception of the anterior two distinctlv 

 tricostate. Sterna smooth in the middle; 5th mostly granular, 

 with a pair of smooth median keels ; lateral keels nearly 

 absent. Tail much expanded posteriorly ; upper surface of 

 all the segments finely granular in the middle, the superior 

 lateral crests present and granular only on the 1st, evanescent 

 on the 2nd ; sides of segments 1-3 pitted, these segments 

 with the four inferior keels strong, granular, and the spaces 

 between them granular ; 4th and 5th segments smooth, without 

 crests, but coarsely pitted below and at the sides ; the inferior 

 lateral keel, however, present and tubercular on the posterior half 

 of the 5th segment ; vesicle as in B. melanurus, but aculeus not 

 so stout at base. Chelce with humerus granular above ; brachium 

 smooth with crenulate crests, the anterior of the upper surface 

 sometimes granular : teeth on digit much as in B. pallidus. In 

 cJ the inferior keels of segments 1-3 and the spaces between 

 them are much smoother than in $ . Pectinal teeth 17-19 ( $ ) 

 19-21 (rf). 



Length up to about 38 mm. 



Loc. Western Ghats of India: Kandala Tal and Wai Tal in 

 Satara (Wilkins), and Poona (Wroughton). 



Genus CHARMUS, Karsch. 

 Charmus, Karsch, MT. Munch, ent. Ver. iii, p. 104, 1879 ; id. Berl. 



ent. Zeits. xxxvi, p. 306, 1891 ; Kraep. Tierr.. Scorp. etc. p. 39. 



1899. 

 Heterocharmus, Pocock, A.M.N. H. (6) ix, p. 47, 1892. 



Carapace without keels ; anteocular area horizontal, not sloped 

 as in Butheolus. Terga with single median keel ; no lateral keels. 



