304 VAEANID-S. 



anchor-shaped. Dorsal scales roundish, juxtaposed, surrounded by- 

 rings of minute granules ; ventral scales squarish, arranged in cross 

 rows. No femoral or prseanal pores. Tail very long. 



A single genus, confined to the Old World and Australia, and 

 forming a perfectly isolated group. 



1. VARANUS. 



Tupinambus, part., Daud. Sept. iii. p. 5. 



IMonitoi's proprement dits, Cttv. R. A. ii. p. 24. 



Vanmus, Merrem. Tent. Si/st. Amph. p. -58 ; Dum. 8f Bibr. iii. p. 467 ; 



Gray, Cat. p. 9 ; O'dnth. Rept. Brit. Ind. p. 04. 

 Psiimmosaurus, Fltzing. N. Classif. Rept. p. 50 ; Wagl. Syst. Amph. 



p. IGo ; Gray, Ann. N. H. i. 1838, p. 302, and Cat. p. 7. 

 Dracajna (non Merr.), Gray, Phil. Mag. (2) ii. 1827, p. 53. 

 Hydrosauru.s, Wagl. I. c. p. 164 ; Gray, II. cc. pp. 393, 8 ; Oiinth. I. c. 



p. 07. 

 Polydjedalus, Wagl. I. c. 

 Monitor, Gray, II. cc. pp. 392, 8 ; Schleg. Ahhild. Amph. p. 65 ; Peters, 



Mon. Berl. Ac. 1870, p. 106. 

 Erapagusia, Gray, II. cc. pp. 393, 9. 

 Odatria, Gray, II. cc. pp. 394, 7. 

 Regenia, Gray, Cat. p. 8 . 



Africa ; Southern Asia ; Australia. 



Synopsis of the Species. 



I, Nostril an oblique slit ; tail round or 



slightly compressed posteriorly .... 1. griseus, p. 306. 



II. Nostril an oblique slit ; tail compressed, keeled above. 

 A. Abdominal scales smooth. 



1. No transversely enlarged supraocular scales. 



Nostril three times more distant from the 



end of the snout than from the orbit ; 



scales small 2. alhigularis, p. 307. 



Nostril three times more distant from the 



end of the snout than from the orbit ; 



scales large, the nuchals larger than the 



occipitals 3. ocellatus, p. 308. 



Nostril twice more distant from the end of 



the snout than from the orbit ; scales [p. 308. 



large 4, exanthematicus. 



Nostril a little nearer the orbit than the 



end of the snout ; scales small G. hengalensis, p. 310. 



2. Median supraoculars more or less enlarged transversely. 



Nostril a little nearer the end of the snout 



than the orbit ; median supraoculars 



slightly dilated 5, Jlavescens, p. 309. 



Nostril twice more distant from the end of 



the snout than from the orbit . 7. nebulosiis, p. 311. 



