STENOCHIRUS. 33 



at most weakly granular. Terga also almost smooth, at most 

 finely granular at the sides and in the dorsal impressions, 

 furnished with a single smooth median keel. C'ephalothoracic 

 sternum triangular, a little longer than wide, as long as the 

 genital operculum. Tail rohust, not keeled below ; no spine on 

 vesicle beneath aculeus. Hand narrow ; fingei's long, the median 

 rows of teeth overlapping each other by nearly half their length, 

 ending posteriorly in 5 or 6 teeth. 



Type, <S'. sarasinorum,. Karsch. 



Distribution. Malabar coast of India and hills of Ceylon. 



Synojisis of Indian Species. 



a. Dorsal plates of abdomen finely granular 



laterally and in the depression on each side 

 of the median keel, the last finely granular 

 posteriorly ; humerus granular and weakly 

 crested in front .S'. politus, p. 33. 



b. Dorsal plates of abdomen entirely smooth ; 



humerus of chela smooth, rounded in front 



(according to Kraepelin) S. sarasinorum, p. •'!•'! 



1 8. Stenochirivs politus, Pocork. Jour. Bom. N. H. Soc. xii, p. 262, 1899 



Colour a deep shining blackish brown on the tail and the upper 

 side of the body ; legs, mandibles, chela?, and lower side of body a 

 little paler than its upper side, the three distal segments of the 

 legs quite pale ; fingers also pale, but brownish at the base. 

 Carapace smooth, finely granular in the depression laterally and 

 posteriorly. Terga smooth, finely granular at the sides and in the 

 depression on each side of the median keel ; last tergal plate 

 closely granular throughout in its posterior half. Tail a little 

 more than six times as long as the carapace, and slightly increasing 

 in width posteriorly to the middle of the 4th segment^ which is a 

 little longer than broad (3 : 2-,5) ; length of 2nd segment equal to 

 the width of the 4th ; the upper side of the segments mesially 

 granular ; the rest of the tail smooth and polished above and 

 below, entirely without keels, but distinctly though not coarsely 

 punctured; vesicle smooth, punctured; aculeus thick at base. 

 CheIo> slender and elongate; humerus weakly crested and weak 1\ 

 granular in front ; brachium smooth, without crests or granules ; 

 hand also much narrower than brachium ; fingers smooth, movable 

 more than twice the length of the underhand, and armed with 10 

 median rows of teeth. Pectinal teeth 15. 



Met inurements in mm. — Total length 33, carapace 'A. tail 20. 

 width of 1st caudal Begment 2*3, of 4th 2-6. 



hoc. Kanara (Bell). 



19. Stenochirus sarasinorum, Karsch, Berl. <>nt. Zeds, xxxvi, p. 306. 



pi. xii, fig. SO, L892j Kraep. Tierr., Scorp. etc, p. 89, 1899. 



Kesembling the preceding in colour, but, judging from Kraepeliif- 

 description, differing in having the carapace finely granular only in 



i) 



