1902.J NATURAL SCIENCES OF PHILADELPHIA. ] 77 



Japalura nigrilabris Peters. 



One ?, Borneo. 

 Calotes cristatellus (Kuhl). 



Ten, Borneo; five, Kapuas river; one, Kuching; one, Baram. 



Mr. Boulenger's conclusion that C. moluccanus can not be .sepa- 

 rated from the present species is fully justified by the specimens in 

 this collection, which exhibit equal variability to those studiftd by 

 him. 

 Varanus salvator (Laur.). 



One adult, Borneo; one young, Kapuas river. 



In both specimens the ventral scales are smooth. 



Varanus heteropholis Boul. 



P. Z. S. of London, 1892, p. 506, PI. XXIX. 



No. 2,380, collected by Messrs. Harrison and Hiller at Baram, 

 Sarawak, is somewhat intermediate between V. dumerili and the 

 single specimen from Mt. Dulit, described by Mr. Boulenger under 

 the above name; but as it presents the characteristic vertebral 

 area of granules, entirely separating the large dorsal and lateral 

 scales, shown by that specimen, they would seem to be identical. 

 It differs from Mr. Boulenger's specimen in that the nuchal scales 

 are not flat, but distinctly subcouical, and the veutrals are without 

 a keel. The large nuchal and dorsal scales are more or less sepa- 

 rated from each other by granules. The whole upper surface is 

 dark-olive, with the black markings much as in V. dumerili, but 

 the crossbands on the body are narrow and indistinct and ai-e more 

 or less prolonged on to the ventrals. The under surface is j'ellow; 

 throat and neck with short, longitudinal black markings. 



Total length r),30 mm. (tail 308). 

 Tacliydromussexlineatus Daud. 



Three, Kuching; three, Borneo. 

 Mabuia rugifera (Stolic). 



Nos. 2,370, 2,444, 2,445, from Kuching, correspond exactiv to 

 M. rugifera, except that a postnasal is present, and the anterior 

 loreal is rather more elevated than the second ; the dorsal scales are 

 in 28 and 29 rows. I am not inclined to separate them on account 

 of these differences. 

 Mabuia multifasciata (Kuhl). 



Xiiiefeen, Sawarak ; one, Kuching; seven, Borneo. 

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