334 Mr. J. E. Gray on the Slender-tongued Saurians. 



irontal shields, the anterior frontal being large and placed in front 

 of the vertebral, and the anterior occipital plates rather large. 



Siaphos aqualis , Gray, GrifF. A. K. Peromeles aequalis, Wieg. 

 Seps aequalis. Gray, Ann. Phil. 1828. 



Hab. ? Brit. Mus. 



**** Muzzle rounded ; body subcylindrical ; legs two, posterior, placed 

 on the side of the vent ending in one or two acute toes. 



Ophiodes, Wagler. Feet tapering, acute, undivided; ears none; 

 eyelid distinct. 



Ophiodes striatus, Pygopus striatus, Spix. Braz. Seps fragilis, 

 Raddi. Pseudopus Olfersii, Lichst. Mus. Paris. 



Jun. — Pygopus Caryococca, Spix. Braz. 



Brazils. Brit. Mus. 



***** Muzzle rounded ; body subcylindrical ; legs none. 



Angtjis. Ears hid ; eyelids distinct. 



A. fragilis, Linn. Brit. Mus. 



SiGUANA, Gray. Otophis, Fitz. ? Ears exposed. 



Siguana Ottonis, Gray, GrifF. Anim. Kingd. ; Otoph. Eryx, Fitz. ? 



Europe. Mus. Breslau. 



Stenostoma, Fitz. Ears none ? eyelids none. 



Stenostoma ? 



Tortrix melanostriata from Russel, Ind. Rept. i. 148. appears to 

 form a new genus of this division. 



DoRFiA. Ears hid ; head with three vertebral plates, the frontal 

 pair between the small first vertebral and the larger second one, the 

 third between the oblique occipital ones ; eyebrows and cheeks co- 

 vered with small scales ; ventral scales not larger than the rest. 



Dorf a punctata. Crown and back white; nape with a central 

 black streak ending in a line of black spots ; cheek, sides, and be- 

 neath black ; lower lip white-dotted. 



Cape of Good Hope. Mus. Chatham. 



Gymnophthalmid^. Tongue contractile, head shielded, rostral 

 shields small rounded ; eyelid none ; back, belly, and sides covered 

 with smooth uniform imbricate scales ; vent transverse linear, with 

 scales in front. 



MicROLEPis, n. g. Toes 5 — 5 ; ears large ; head depressed; scales 

 moderately grooved ; head with five vertebral plates. 



Microlepis undulata. Tiliqua microlepis. Gray, Griff. Anim. Kingd. 

 71. Silvery, back with brown wavy bands. 



Hab. ? Brit. Mus. 



Ablepharus. Toes 5 — 5 ; ears distinct ; front of vent shielded ; 



