48 REPTILES. 



a, b. Adult, stuffed. Central dorsal series of scales smooth. S. 

 Africa. From the S. African Museum. 

 Z. vertebralis, G-'ra?/, Ann. N. H. i. 388. 



c. Adult, stuffed. S. Africa. 



d. Adult, in spirits. Reddish. S, Africa. Presented by the Earl 



of Derby. 



e. Adult, in spirits. Olive, black-spotted. S. Africa. Presented 



by John Lee, LL.D. 

 / — h. In spirits, partly bleached. S. Africa. 



** Ventral shields oblong, central rounder, the lateral ones slightly 



keeled and angular behind. 



Lord Derby's Zonurus. Zonurus Derbianus. 



Head-shields very rough, back of head with a ridge of conical 

 spines ; scales of the nape, sides and tail ending in broad conical 

 spines; tail conical, very spinose; ventral shields rounded, lateral 

 ones angular. 



a. Adult, in spirits. Brown, head black. S. Africa. Presented 



by the Earl of Derby. 



b. Young, in spirits. Black and white banded, tail black-ringed, 



end red. S. Africa. Presented by the Earl of Derby. 



3. Hemicordylus, A. Smith. Zonurus, Sect. 2. Dum. et Bib. 



Head depressed. Fronto-parietal and parietal plates large. 

 Temple-scales smooth. Neck granular. Palate not toothed. Na- 

 sal triangular, contiguous ; supranasal none. Throat with a fold 

 on each side. Scales of the back small, quadrangular, keeled, sub- 

 imbricate, in close cross rows ; of the sides granular, with a series 

 of larger scales. Toes 5-5, compressed, keeled beneath. Tail 

 spinose ; lower eyelid scaly. 



The Bastard Cordyle. Hemicordylus capensis, A. Smith, 

 Mag. N. H. ii. 32. lllustr. Zool. S. Afr. t. 27, /. 2. t. 30, /. 6. 

 Dum. et Bib. E. G. v. 360. 



Ventral shields 8-rowed ; tail subspinose. 



Inhab. S. Africa. Mus. Chatham, 1 specimen. 



4. PSEUDOCORDYLUS, -4. ASmz^/t. 



Head depressed. Fronto-parietal and parietal plates large ; 

 temple-scales smooth. Neck granular, v^rith a strong plait on each 

 side. Throat with an indistinct collar attached in the middle, and 

 with a distinct fold on each side. Palate not toothed. Nasal tri- 

 angular, contiguous ; supra-nasal none. Eyelids distinct, lower 

 opaque. Scales of the back and sides granular, with transverse 

 series of ovate, trigonal, convex, slightly keeled larger scales, lar- 

 gest on the sides of the back. Toes 5-5, compressed, keeled be- 

 neath. Tail compressed, spinose, 



