Annals of the Transvaal Museum 
240 
front and on the sides. Limbs above with large spinose imbricate keeled 
scales; about 12 femoral pores on each side. Tail with whorls of large spinose 
scales, separated from each other by whorls of smaller scales; lateral caudal 
scales very large, strongly spinose and horizontal; lower caudal scales long, 
narrow, pentagonal, smooth. Colour: head, brownish-black above, much 
lighter and yellowish under the chin, back more brownish than head, becoming 
lighter towards the sides, which are yellowish-brown ; belly, slate-grey becoming 
lighter and more tinged with brown towards neck and anus. Tail, greyish- 
brown above, lighter brown to yellowish on the sides, underneath slightly 
lighter than above. 
In younger specimens several scales on the back and sides are nearly 
yellow, forming more or less transverse series from occiput to base of tail; 
several of the lateral caudal scales yellowish, and also some of the legs. 
millim. 
millim. 
Total length 
• 275 
Fore limb . . . 
... 41 
Head 
• 32 
Hind limb... 
60 
Width of head 
29 
Tail 
••• 155 
Body 
. 88 
Holotype, a full-grown female, No. 3769, Cat. Lizards; paratypes, three 
nearly adult specimens, Nos. 3770, 3771, 3768, Cat. Lizards. Locality: 
Geelhoutkop (Driefontein), Waterberg Dist., Transvaal. Coll, by G. P. F. van 
Dam, and Dr H. G. Breyer, Jan. 1918. 
This species is closely related to Z. giganteus Smith, from which it differs 
chiefly in size, number and length of the occipital spines. The tail with whorls 
of smaller scales separating the whorls of large spinose scales, these whorls of 
small scales being absent in Z. giganteus. 
The new lizard occurs amongst rocks on the farm Geelhoutkop, about 45 
miles north of Nylstroom. Geelhoutkop is the highest point in the vicinity 
(approximately 5000 ft.). 
The holotype specimen is a large female. It was caught in Jan. 1918. On 
opening it was found to contain six young ones, of which five were preserved. 
Their length was as much as 90 mm. The unborn young differs from the adult 
in the following points: head shields smooth; occipitals not sharply pointed, 
but only keeled. Dorsal scales strongly keeled in the middle as well as on the 
sides. The whorls of small scales between the whorls of large spinose scales of 
the tail can be distinctly seen from above, but not from underneath, being 
hidden by the lateral spines and those below. 
Zonurus barbertonensis sp. nov. Plate III. 
Head longer than broad, strongly depressed. Head shields rugose; fronto- 
nasal slightly broader than long, in contact with the rostral, separating the 
nasals, latter slightly swollen, nostrils in the posterior part of the nasal; prae- 
frontals in contact at their inner angles; frontal hexagonal, slightly widened 
anteriorly; frontoparietals slightly broader than long; interparietal between 
four parietals, being pointed anteriorly more sharply than posteriorly; pos- 
terior parietals larger than the anterior ones; six occipital spines, the outer 
ones shorter than the second, second pair longest, narrowest, the middle pair 
shortest and broadest; temporals large, keeled, five temporal spines on each 
side; four supraoculars, the anterior one longest, the second one broadest; 
four supraciliaries ; lower eyelid opaque; loreal and praeocular large; four to 
five suborbitals; rostral twice and a half as broad as deep, six upper labials, 
fourth and fifth separated by a suborbital shield; six lower labials, fifth and 
sixth keeled, bordered below by five large shields ; small irregular chin shields ; 
