BUTHUS. 27 



spaces of the anterior segments sometimes smooth, especially in 

 male ; upper surface also granular, but less so than the sides ; the 

 segments wider and higher as compared with their length than in 

 B. tamulus; 1st, 2nd, and 3rd segments wider than long, 4th very 

 slightly longer than wide, 5th about one-third longer than wide; 

 width of 1st exceeding length of ;ird and almost equal to that of 

 4th ; 1st, 2nd, and 3rd approximately equal in width ; height of 

 2nd equal to its length (in B. tumulus the length of the 2nd far 

 exceeds its height, and the length of the 3rd exceeds the width of 

 the 1st). Ohelce with bracbium finely granular above; movable finger 

 only about as long as the carapace, less than twice the length 

 of the underhand, furnished with 12 rows of teeth. Pectinal 

 teeth 18-21. 



J with the same sexual features as in B. tamulus; pectinal 

 teeth 21-24. 



Measurements in mm. — 5 • Total length 53, length of carapace 

 5-5, of tail 27. 6 ■ Total length 44, carapace 5, tail 25-8. 



Loc. Mahubleshwar (Wroughton) and Satara (Wilkins) in the 

 South Deccan. 



Subspecies nigritus, nov. 



Allied to the typical form of B. rugiscutis, but with the upper 

 side of the body black ; chela? yellow ; upper side of tail yellow, 

 lower side with the keels very strongly infuscate, the black from the 

 inferior median keels spreading over the intermediate area and 

 giving rise to a broad median longitudinal band, which is especially 

 distinct on the 4th segment; legs infuscate. with the tibiae, pro- 

 tarsi, and tarsi pale; sterna clouded with black. Pectinal teeth 

 (?) 19-20. 



Loc. Panchgani in Satara District, South Deccan (Phijjson). 



12. Buthus pachyurus, Pocoek, Jour. Bom. X. H. Soc. xi, p. 107, 

 1897 ; Kraep. Ticrr., Scorp. etc. p. 20, 1899. 



Most nearly allied to B. rugiscutis, but recognizable by being of 

 a tolerably uniform black or brownish-black colour; the vesicle, 

 hand and ringers, and extremity of legs inclining to reddish brown. 

 Upper side of body granular, as in B. rugiscutis. Tail also as in that 

 species, but distinctly thicker ; segments 1, 2, and 3 considerably 

 wider than long; the segments, when viewed from above, much 

 more parallel-sided than in B. rugiscutis : the 4th segment is 

 almost a square, its anterior and posterior ends being almost as wide 

 as its middle, whereas in B. rugiscutis the sides of this and of the 

 other segments are distinctly convex, the segments being wider 

 in the middle than at the ends. In sexual characters, numbers 

 of pectinal teeth, and of teeth on digits approximately as in 

 li. rugiscutis. 



Total length up to about 46 mm. 



Loc Manilla and Kamptee in the Central Provinces (Caccia) ; 

 Nasik (Millard), and Satara (Wilkins), in the Bombay Presidency. 



