APPENDIX. 499 



The Silubosaure. Silubosaurus Stokesii. 



Plate 1. 

 Olive browii, varied with black and large white spots ; shields 

 of the head white, black-edged. 

 Inhab. Australia. 



Egeknia, Gray. 



Head quadrangular, rather tapering in front. Head shields 

 convex, rugose. Nasal shields ovate-triangular, rather anterior, 

 approximate ; supranasal none ; rostral triangular, erect ; inter- 

 nasal lozenge-shaped, as long as broad; frontonasal rhombic, 

 lateral, separate ; frontal and interparietal moderate, elongate ; 

 frontoparietals 2, rather diverging, contiguous in front ; parietal 

 moderate, half ovate. Temple shielded. Orbit without any 

 scales between it and the labial shields. Ears oblong, with 4 

 small scales in front. Body fusiform. Scales of the back, sides, 

 and upper part of the limbs broad, 6-sided, with a large central 

 keel ending in a spine, larger on the loins, those of the nape 3- or 

 5-grooved, of the throat and belly thin, broad, ovate, 6-sided. 

 Legs 4, strong. Toes elongate, compressed, unequal, clawed. 

 Tail as long as the body, round, tapering, with 6 series of broad 

 6-sided, keeled, strongly-spined scales, with a series of broad 

 6-sided smooth scales. 



Cuimingham's Egernia. Egeenia Cunninghami. 



Tiliqua Cunninghami. Gray, Proc. Zool. Soc. 1832-40. 



Plate 2. 



Ohve, white spotted head, brown chin, and beneath white ; ears 

 with 3 or 4 pointed scales in front. 

 Inhab. Austraha. 



Fam. Agamid.'e. 



Chelosania, Gi-ay. 



Head large, covered vrith small rather unequal not imbricate 

 scales. Sides of the face romided, without any large scales upon 

 the edge of the eyebrows. Parotids swollen, unarmed. Nostrils 



