Mr. Gray on the Slender-tonyued Scmrians. 389 



Zonurus microlepidotus. Cordylus microlepidotus, Cuv., Gucrin, 

 Icon. t. 6. f. 1. 



Cape of Good Hope. 



Cicigna., Gray, 1829. Gerrhosaurus, Wiegm. Pleurostichus, 

 A.Smith. Head pyramidical ; tail rather compressed, armless; 

 scales of the back armless, of the belly smooth. Toes 5 — 5. 



Cicigna sepiformis. Scincus sepiformis, Schn. Lac. sepiformis, 

 Gmel. Gerrho. flavigula Wiegm., Wagler Icon. t. 34. f. 1. Pleu- 

 rostichus typicus, Smith, I. c. 



Cape of Good Hope. 



Cicigna Desgardinii. Pleurostichus Desjardinii, Smith, I. c. 143. 



South Africa. East coast of the Cape of Good Hope. 



Cicigna chrysobroncha. Pleurostichus chrysobronchus, Smith, I. c. 



South Africa. Damp woody situations about Graham Town, 

 Cape of Good Hope. 



Tachydromus. Toes 5 — 5. Body very long ; scales rhombic, la- 

 teral line wide, femoral pores one pair on each thigh. 



Tachydromus typus. Brown with a broad greenish silvery stripe 

 along each side of the back ; sides with a few small silvery spots ; 

 upper lip and beneath silvery ; back with four series of large, and 

 belly with six series of smaller keeled scales. Tail four times as 

 long as the body. 



China. 



Caitia, Gray. Body very long, front feet very slender, elongate, 

 rudimentary ; hinder feet short, compressed, thick, rudimentary, un- 

 divided, with two large femoral pores on each thigh. Tail very long 

 and slender. 



Caitia Africana. Olive brown, rather paler on the sides. 



Cape of Good Hope. 



B. Lizard-like ; ears exposed ; legs 4 ; femoral pores none. New 

 World. 



Abronia, Gray. Head depressed, with an odd anterior central plate 

 between the 4 or 6 polygonal frontal ones ; back and tail with smooth 

 or very obscurely keeled scales ; toes 5 — 5 ; tail round, tapering, 

 about as long as the body. 



* Scales of the back smooth ; head depressed. 

 Ab. Deppii. G. Deppii, Wiegm. Herp. Mex. t. 9. f. 2. Above black, 

 white spotted scales of the back very smooth, lateral plait obsolete ; 

 toes with large rounded warts below. 



Mexico. 



** Scales of the middle of the back obsoletely keeled, of the sides 

 smooth ; head sub depressed. 



