Tarantulidge in the British Museum. 277 



a 2 . Ocular tubercle strikingly high ; spines on 

 the chela very long, the first on the upper- 

 side of the tarsus much larger than the 



distal one macrops, sp. n. 



b 2 . Ocular tubercle lower, spines on chela 

 shorter, the first on the upperside of the 



tarsus smaller than the distal Icevifrons, sp. n. 



k x . The spines on the chelfe shorter, the longest 

 on the tibia shorter than the width of the 

 segment : ocular tubercle low, not notice- 

 ably higher than the lateral eye-clusters ; 

 frontal process more concealed, fifth spine 

 from proximal end of upper edge of tibia 

 only a little shorter than the fourth. 

 a 3 . The distal spine on the upper edge of 



the tarsus longer than the proximal .... viridiceps, Pocock. 

 6 3 . The distal spine on the upper edge of the 



tarsus shorter than the proximal azteca, sp. n. 



b. Tibia of chela armed above with 7 or 8 spines, 



of which the third from the proximal end and 



the fourth or third from the distal end are the 



longest, there being only one spine between 



these two. The number of spines sinks to 7 



when what is the anterior spine or spinule in 



some species disappears in others. 



a l . The second spine on the tibia of the chela very 



short, about g of the length of the third and 



\ of the fourth ; there are thus only 3 long 



spines on this segment, and, owing to the 



disappearance of the distal spinule, only 7 



spines altogether Whitei (Gerv.) *. 



b*. The second spine on the upper edge of the 



tibia of the chela long, nearly as long as the 



third and almost always longer than the 



fourth ; there are thus at least 4 long spines 



in this series. 



a 5 . Tibia of chela slender, spines longer, the 



longest spine exceeding the width of the 



segment ; lateral eye-clusters mostly closer 



together, the distance between them only 



a trifle more than half the median length 



of the carapace, the anterior margin of 



which is more coarsely dentate laterally 



than in the middle ; the median eyes not 



far from the anterior margin ; mandible 



with enlarged tubercle. 



a 6 . The 6 spines on the tarsus of the chela 



well developed ; frontal process almost 



concealed. 



a 7 . Legs exceedingly long; length of femur 



of first and tibia of third greater than 



twice the width of the carapace ; 



second tibial of fourth leg equal to 



distance between eyes longipes, Pocock. 



* The type of this species is ticketed Burdwan (India), but probablv 

 erroneously. 



