BUTHUS. 21 



half the 2nd caudal segment ; entirely covered with fine close 

 granulation ; anterior crests complete and granular ; posterior 



crests joining the median crests and form- 

 ing almost a straight line with them, 

 posteriorly spiniform. Terga closely 

 granular throughout ; keels long, granular, 

 subparallel, and posteriorly spiniform. 

 Sterna and ro.r"' closely granular, the last 

 steruum with four long granular keels, 

 the 4th also subcarinate. Tail about five 



_.. q_p , . l times as long as the carapace, 1st segment 



Interior "abdominal scarcely longer than wide, 4th not twice 

 terga of Butkus acute- as long as wide; finely granular through- 

 carmatus. out ; keels complete, evenly granular, 



inferior lateral of 5th evenly granular to 

 posterior end, and passing without interruption into anal lobe ; 

 median lateral keel traceable on the 4th segment, strong on 2nd; 

 vesicle coarsely granular, subangulate near base of aculeus, about 

 as high as wide. Chelce closely granular throughout ; brachium 

 grauularly crested above ; hand with distiuct granular crests 

 above and externally, slightly wider than the brachium ; under- 

 hand barely Half the length of the movable digit, which is 

 basally sublobate (more strongly so in d) and furnished with 

 1 I rows of teeth. Legs with femora and patellae closely granular 

 and grauularly crested ; tarsi armed beneath with short bristles. 

 Pectinal teeth 15-17 ( ? 6 )• 



Measurements in mm. — Total length 50, carapace 5 - 5, tail 27, 

 movable digit (j, back of hand 3'2, width of hand 2-2, of 

 brachium 2. 



Lot-. Hyderabad in Sind {Ryan) ; Gwalior in Central India 



(type), 



Differs from the typical Arabian form in having the 5th caudal 

 segment entirely pale yellow and the hand larger. 



7. ButhllS alticola, Pocock, Jour. Linn. Soc, Zool. xxv, p. 802, pi. ix, 

 6g. •'!, L896; Birula,Ann. Mus. si. PSterab. ii, p. :>77, 1897; Kr«r/>. 

 Tterr., S C orj>. etc. p. 21, 18 ( J ( J. 



<3 . Colour: Carapace and anterior six terga blackish green; 

 7th tergum, tail, legs, and chelae flavous, with the exception of the 

 digits which are brown with clear yellow tips, and the lower side 

 of the tail which is subolivaceous. Carapace coarsely granular 

 and carinate, as long as the 4th caudal segment or as the 1st 

 and ~ of the 2nd. Terga coarsely granular and strongly carinate, 

 the three keels on all the segments except the Lsl strongly denti- 

 form posteriorly; the granules on the -ides of the terga suh- 

 serially arranged. St' ma smooth; median crests of the 5th 

 smooth, lateral crests weakly granular. Tail long, Blender and 

 low, nearly six times as long as the carapace : 1th segment twice 

 as long as wide ; median lateral keel complete on segments J , 2, 



