252 MR. G. A. BOULEXGER 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 

 vei-miculations, Avhite beneath, with blackish spots ; plastron 

 yellowish brown, bordered with black. 



2. OiNiXYs BELLiANA 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. HOMOPUS SIGNATUS Walb. 

 Ivlipfontein. 



Lacertilia. 



4. Lygodactylus capensis a Smith. 

 Kgoye Hills. 



5. Pachydactylus bibronii a. Smith. 

 Klipfontein. 



6. Pachydactylus mariquensis A. Smith. 

 Klipfontein. 



7. Agama 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 British Museum by Col. Sloggett, 

 and these, together with the six collected by Mr. Grant in British 

 Namaqualand, enable me to give a revised desci'iption of this 

 near ally of Agama liispida. 



Head convex, subcordiform, as long as broad, I^Jostril not 

 tubulai', lateral, pierced just below the canthus rostralis in a 

 convex nasal. Scales on antei'ior part of head smooth or rugose, 

 sometimes feebly keeled, often trihedral on middle of snout, on 

 oack of head moi-e or less strongly keeled, some erect and spinose ; 

 occipital enlarged ; head about the ears and neck wdth short 

 erect spines. Body strongly depressed, covered with irregular, 

 imbi'icate, 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 



