308 VAEANIDJI. 



surfaces small, oval, smooth ; nuchal scales not larger than occipitals. 

 Abdominal scales smooth, in eighty-fivo to one hundred transverse 

 rows. Caudal scales keeled ; the caudal keel with a very low, 

 donhly-toothed crest. Greyish-brown above, with large round 

 yellow dark-edged spots arranged in transverse series on the back ; 

 a dark temporal streak, extending along the side of the neck; 

 tail with alternate brown and yellowish annuli ; lower surfaces 

 yellowish. 



centim. centim. 



Total length 122 Fore limb 17 



Head 9 Hind limb 19 



^"eck 9 Tail 67 



Body 37 



South and South-east Africa. 



a, b, c. Ad., stuffed. S. Africa. S. African Museum. 



d. HgT., stuffed. Port Natal. 



e. IlgT. Lake Nyassa. 



/. Anatomical preparation. {Cf. Giinther, Proc. Zool. Soc. 1861, p. 113.) 



3. Varanus ocellatus. 



Varanus ocellatus, RilppeJl, Seise N. Afr., Rept. p. 21, pi. vi. 

 Monitor ocellatus, Peters, Mon. Berl. Ac. 1870, p. 109. 



Distinguished from the preceding by the larger dorsal and nuchal 

 scales, the latter being much larger than the occipitals. Abdominal 

 scales in seventy transverse rows. Yellowish-brown above, with 

 more or less distinct, yellowish, brown-edged round spots ; no dark 

 streak on the side of the neck. 



Abyssinia ; Cordofan. 



a. Ad. Anseba, Abyssinia. W. T. Blanford, Esq. [C.]. 



h. Ad., stuffed. Cordofan. Dr. Riippell. 



4. Varanus exanthematicus. 



Regenia ocellatus, Gray, Cat. p. 9. 

 Lacerta exanihematica, Bosc, Act. Soc. Hist. Nat. Paris, 1792, p. 25, 



pi. V. fig. 3. 

 Tupiuambis exanthematicus, Baud. Rept. iii. p. 80. 

 Varanus exanthematicus, Merr. Tent. p. 60. 



ocellatvis {non RHp)p.^, Dum. 4'- Bihr. iii p. 496. 



Monitor exanthematicus^ var. A, Schley. Abbild. p. 70. 

 exanthematicus, Peters, Mon. Berl. Ac. 1870, p. 109. 



Diifers from the two preceding species in the position of the 

 nostrils ; these are more anterior, their distance from the orbit being 

 at least half their distance from the end of the snout. Scales as in 



