304 VARANIDZ. 
anchor-shaped. Dorsal scales roundish, juxtaposed, surrounded by 
rings of minute granules ; ventral scales squarish, arranged in cross 
rows. No femoral or preanal 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. Rept. iil. p. 5. 
Monitors proprement dits, Cuv. R. A. ii. p. 24. 
Varanus, Merrem. Tent. Syst. Amph. p.58; Dum. § Bibr. iii. p. 467 ; 
Gray, Cat. p. 9; Giinth. Rept. Brit. Ind. p. G4. 
Psammosaurus, Fitzing. NW. Classif. Rept. p.50; Wagl. Syst. Amph. 
p. 165; Gray, Ann, N. H. i. 1838, p. 892, and Cat. p. 7. 
Draciena (non Merr.), Gray, Phil. Mag. (2) ii. 1827, p. 53. 
Hydrosaurus, Wagl. 1. ¢. p. 164; Gray, U. ce. pp. 398, 8; Giinth. 1. ¢. 
67 
Pdigdesdalis, Wagl. l. ec. 
Monitor, Gray, Ul. ce. pp. 392,8; Schleg. Abbild. Amph. p. 65; Peters, 
Mon. Berl. Ac, 1870, p. 106. 
Empagusia, Gray, il. cc. pp. 393, 9. 
Odatria, Gray, il. 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 isinall: ss unodes cule-peaw cewek 2. albigularis, p. 307. 
Nostril three times more distant from the 
end of the snout than from the orbit; 
scales large, the nuchals larger than the 
OGCIPltals: cases eyed eas eens 3. ocellatus, p. 308, 
Nostril twice more distant from the end of 
the snout than from the orbit; scales [p. 308. 
PETC Oh Uek Scanian see sh act a pydeth ioe eee ek 4, exanthematicus, 
Nostril a little nearer the orbit than the 
end of the snout; scales small ...... 6. bengalensis, 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. flavescens, p. 309. 
Nostril twice more distant from the end of 
the suout than from the orbit........ 7. nebulosus, p. 311. 
