174 



153 



mm 



17 



" 



70 



a 



66 



a 



10 



" 



16 



" 



20 



a 



Total length 



Head 



Body 



Tail 



Width of head ... 

 Length of foreliml) 

 Length of hindlimb 



Lygosoma FRAfiiLK, (,'iimtlier. 



Two specimens ; between the Everard and Barrow Ranges. 



In the following notes we repeat Boulenger's description, 

 which agrees accurately with the above specimens : — 



Body much elongate ; limbs very weak, tridactyle. ScaUng 

 as in L. Bougainvillei, except that tlie fronto-parietals are united 

 into a single shield, and the fourth labial enters the orbit. Ear 

 just distinguishable. Twenty scales round the body. Hind- 

 limb as long as the distance between the eye and forelimb. Toes 

 very unequal in size, the third longest. 



Colour. — Olive above, with indistinct black lines along the 

 series of scales ; sides blackish, this colour being sharply defined 

 towards the back ; belly sparingly spotted with black. 



The following are the measurements of one specimen : — 

 Total length ... ... ... ... 74 mm. 



Head 



Body 



Tail 



Width of head ... 

 Length, of forelimb 

 Length of hindlimb 



6 

 33 

 37) 

 4 

 4 

 9 



Lygosoma Gereardii, Gunther. 



One specimen ; Eraser Range. 



Colour. — Light-grey above, with four narrow dark-brown 

 longitudinal lines. Lateral lines broad, and of the same colour , 

 lower surface yellowish. 



Total length, 150 mm. 



A species of Lygosoma, represented by three specimens, col- 

 lected in the Barrow Range, agrees in every respect with 

 L. Gerrardii, except that the forelimbs are didactyle, and the 

 hindlimbs tridactyle. There are, in the S.A. Museum, several 

 lizards which we refer to L. Gerrardii, with the forelimbs rudi- 

 mentary or altogether invisible externally. We come tlierefore 

 to the conclusion that the number of toes in this group, which 

 formerly formed the genus Rhodona, are subject to great varia- 

 tion. Boulenger stated, in describing this species, that the fore- 

 limbs are either mono- or di-dactyle. 



