164 



The A sli'^ped bLick mark on tlie throat to which Boulenger 

 refers to in his description is not traceable in our specimens ; 

 but as we have seen it absent also in specimens of Amphiholurus 

 Adelaidensis (the whole throat being sometimes uniformly black), 

 we have no doubt that this feature is subject to great variation. 

 The third specimen (the young one) has dark mottling on the 

 the throat only. 

 Amphibolurus eufescens, sp. nov. PI. VI., figs. 2 and 2a. 



Three specimens. Mount Sir Thomas, Birksgate Range, S.A. 



Genaral il«/>ec<.— Body proportionally short, head moderately 

 larcre, snout as long as the diameter of the eye-openmg. Nostrils 

 situated below the canthus rostralis, and directed upwards, nearer 

 the eye than the end of the snout. Upper head-scales large, 

 strongly keeled, largest towards the snout and on the canthus 

 rostralis, smallest on supra-orbital region, but gradually decreas- 

 ing in size towards the neck. Sides of neck plicated. A low 

 nuchal crest. Gular scales small, about half the size of the 

 veAtrals ; these are very slight and obtusely keeled Scales on 

 sides of body small, but increasing in size towards the vertebral 

 line The scales on tail and upper-side of limbs are large and 

 strongly keeled, and on the middle line of the upper-surface of the 

 tail are intermixed with a few lai-er ones. Limbs and digits pro- 

 portionally long, the adpressed hindlimb reachmg almost to the 

 tip of snout Fifty-eight femoral and anal pores form on each 

 thio-h an uninterrupted line; the series of each side separated m 

 the prce-anal region. Tail slender, tapering very gradually 

 towards its point. 



CoZowr —Above, rusty-brown, with dark spots more or less 

 reoularly arranged in pairs along the vertebral line ; each pan- 

 sometimes confluent. A similar single series of dark spots 

 corresponding with the lateral line. Under-surface dirty 

 yellowish-white; chest olive. Throat and gular region with 

 irregularly disposed dark markings on a cream ground-colour, 

 being most distinct in the two smaller specimens. 



Total length 

 Head 



Body 



Tail (injured; 

 Width of head . . . 

 Length of forelimb 

 Lenath of hindlimb 



Sp. A. 



228 mm. 

 22 " 

 66 " 



140 " 

 18 " 

 35 " 

 78 " 



Sp. B. 



210 mm. 

 17 " 

 47 " 



146 " 

 14 "■ 

 3.3 " 

 60 " 



Amphibolukus cristatus. Gray. 

 Between Queen Victoria Springs and Fraser Range; one 

 specimen. 



