LIZARDS. 



A. Tail rounds without any keel above. Terrestrial. 



Gen. 1. PsAMMOsAURUs, Fitz. 



Nostrils ovate, oblique, near the orbits. Tail roundish, not 

 keeled above, with convex sides, unarmed. Scales not pierced. 

 Toes unequal, rather elongate. Teeth slender, acute. 



The OuARAN. Psammosaurus Scincus, Gray, Ann. Nat. Hist. 

 i. 392. Wagler, Syst. 165. Uaranus Scincus, Merrem, Tent. 59. 

 Gray, Griffith, A. K., i. 27. Tupinambis griseus, Daud. Rept. viii. 

 352. Monitor terrestre, Cuv. R. A. ii. 26. Schinz, Rept. t. 32,/. 

 2. Ouran de Forskal, Geoff. Rept. Egypt, t. 3,/. 2, t. 4,/. 14, 15. 

 Tupinambis arenarius, I. Geoffr. Rept. Egypt. Dum. et Bib. E. 

 Gm. iii. 471. 



Grey, obscurely banded with an obscure streak on each side of 

 the head aad neck. 



a. Young, in spirits. Pale brown, with pale cross bands; tail with 

 dark rings ; head and neck with 2 black streaks on each side ; 

 side of face black cross-lined. North Africa. Presented by Sir 

 J. Gardner Wilkinson. 



h, c. Adult, stuffed and in spirits. N. Africa. Presented by 

 James Burton, jun. 



d. Half grown, stufifed. The dark mark rather visible. N. Afri- 

 ca. Presented by Sir J. G. Wilkinson. 



e,f. Adult, stuffed. N. Africa. From Mr. Warwick's collection. 



The Caspian OuARAN. Psammosaurus (?) Caspicus, Eichw. 

 ZooL Spe. iii. 190, t. 1,/. 8—10. Fauna Gasp. 48, t. 7—9, bones. 

 Inhab. Caspian Sea. Mus. Moscow, a doubtful species. 



2. Odatria, Gray. 



Nostrils ovate, longitudinal, subanterior. Teeth compressed, 

 acute. Tail elongate, round, not keeled above, scales large, sharp- 

 ly keeled, subspinose. Back with elongate, narrow, keeled scales. 

 Ventral shield elongate. Toes rather unequal, elongate. 



The Dotted Odatria. Odatria punctata, Gray, Ann. Hist. 

 ii. 394. Grey, Trav. Aust. ii. 422. Zool. Erebus ^- Terror, t. 

 Monitor tristis, Schlegel, Abbild. 73. 



Grey olive, with narrow black reticulated lines, leaving large 

 hexagonal spots. Head, limbs and tail blackish, with a few pale 

 spots, dark banded. Ventral shield twice as long as broad. Tail 

 round, scales over the eye small, granular. Male ? with a tuft of 

 conical spine-like scales on each side of the vent. 



a. Half.grown, in spirits. Male? with tuft of spines. Western 

 Australia. From Mr. Buchanan's collection. 



