1. ZOXURUS. 2. VSEUDOCORDTLCrS. 259 



Head much depressed, much longer than broad. Nasals not 

 swollen, in contact, pierced in their posterior part ; frontonasal 

 hexagonal, as broad as long, followed by a pair of praefrontals 

 forming a suture ; frontal pentagonal, a little wider anteriorly ; 

 interparietal small, between the four parietals, touching the fronto- 

 parietals with its anterior point ; temporals in three longitudinal 

 rows ; no spines ; four supraoculars, anterior largest ; four supra- 

 ciliaries ; a loreal, a proeorbital, three infraorbitals. Six lower 

 labials, posterior largest, in contact with a row of five large shields ; 

 space between the rami of lower jaw covered with scales of two 

 kinds : those on the central portion quadrangular, rather large, and 

 disposed in irregular rows, those on the sides small and granular ; 

 scales of under surface of neck moderately large, ovate, and ir- 

 regularly arranged. Scales of the back large, quadrangular, strongly 

 keeled and arranged in transverse rows, generally Leu in each row, 

 the keels forming continuous delicate ridges ; the lateral and upper 

 parts of the neck, and the lower portion of sides covered with small, 

 subcircular, prominent scales like small granulations. Ventrals in 

 regular transverse rows, eight in each. Two enlarged posterior 

 prteanal scales. Upper surface of limbs covered with imbricate 

 keeled scales, inferiorly with smooth scales or granules. Femoral 

 pores small, closely set, eighteen on each side. Tail surrounded by 

 whorls of hard rugged quadrangular scales, each scale strongly 

 keeled and each keel, especially towards the base of the tail, produced 

 posteriorly into a sliarp prominent spine, most developed superiorly 

 at the lateral angles ; the keels of the subcaudal scales obtuse, only 

 slightly indicated, and without the spinose prolongations of the upper 

 and lateral parts. Purplish brown above, dull brownish red inferiorly. 



Total length 264 millim. ; tail 156 millim. 



Cape of Good Hope. 



2. PSEUDOCORDYLUS. 



Pseudocordylus, Smith, Mag. N. H. (2) ii. 1838, p. 32; Gray, Cat. 



Liz. p. 48. 

 Zonurus, part., Dum. 4" Bihr. v. p. 344. 



Head and body depressed ; limbs well developed. Head-shields 

 regular ; four parietals ; nostril pierced between the nasal and the 

 first labial. Ear-opening large. Dorsal scales roundish, soft, inter- 

 mixed with granules ; ventrals large, square, smooth, juxtaposed, 

 forming longitudinal and transverse series. A collar fold, attached 

 medially. Digits slightly keeled inferiorly. Tail spinose. Femoral 

 pores. 



South Africa. 



1. Pseudocordylus microlepidotus. 



P,«euilocor(lylu3 niicrolejiidotus, (iraji, Cat. p. 49. 

 Cordvliis niicrolopidotiis, Cui\ Ii. A. 2iul ed. ii. p. S'i ; Giftr. Icon. 

 JR. A., Rept. pi. vi. fig. 1 ; Smith, III. S. Afr., Rept. pis. xxiv.-xxvi. 

 and XXX. figs. 1-5. 



82 



