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Show 252 MR. G. A. BOULENGER ON SOUTH-AFRICAN [June 6, to distinguish it from S. nigricans is not without difficulties. In this specimen the cusps in the upper jaw are absent, the posterior border of the carapace is very distinctly serrated, the intergular shield is twice as long as broad, the length of the outer border of the pectoral shield slightly exceeds that of the humeral, and the suture between the abdominal shields is shorter than the front lobe of the plastron. Head pale brown above, with black vermiculations, white beneath, with blackish spots; plastron yellowish brown, bordered with black. 2. Cin ix y s belliaxa Gray. Umfolosi Station. This species had not previously been recorded from South Africa. In the specimens collected by Mr. Grant the shields of the carapace are marked with black radiating streaks. 3. H omopus signatus W a lb . Klipfontein. L a c e r t i l i a . 4. L ygodactylus capensis A Smith. Ngoye Hills. 5. P a c h y d a c t y l u s b ib r o n i i A. Smith. Klipfontein. 6. P achydactylus mariquensis A. Smith. Klipfontein. 7. A gama brachyura Blgr. Klipfontein and Port Nolloth. This species was established on a single female specimen labelled " Cape of Good Hope," from Sir A. Smith's collection. I have since examined four specimens collected at Deelfontein by Mr. Seimund,and presented to the Brit ish Museum by Col. Sloggett, and these, together with the six collected by Mr. Grant in British Namaqualand, enable me to give a revised description of this near ally of Agama hispida. Head convex, subcordiform, as long as broad. Nostril not tubular, lateral, pierced just below the canthus rostralis in a convex nasal. Scales on anterior part of head smooth or rugose, sometimes feebly keeled, often trihedral on middle of snout, on oack of head more or less strongly keeled, some erect and spinose ; occipital enlarged ; head about the ears and neck with short erect spines. Body strongly depressed, covered with irregular, imbricate, strongly keeled scales intermixed with strongly enlarged, trihedral, spinose ones ; a small nuchal crest, sometimes continued along the body; ventral scales smooth or very feebly |