LIZARDS. 23 



6. DicRODON, Dum. et Bib. 



Tongue moderately large, rather dilated, not contracted and 

 sheathed at the base, with 2 depressed tips ; palate not toothed ; 

 cheek-teeth flattened, transverse, and hluntly 2-lobed at the tip ; 

 nostrils on the edge of the nasal plate. Toes 5-5, rather com- 

 pressed, not keeled beneath. 



The Spotted Dicrodon. Dicrodon guttulatum, Eydoux, 

 MSS. Dum. et Bib. E. G. v. 138. 



Olive, white-spotted, with 2 white streaks on each side. 

 Inhab. Peru. Mus. Paris, (I spec.) 



6. AcRANTus. Wagl. Teius, Fitz. 



Toes 5-4, the outer hind toe rudimentary and short. Tail 

 round, with elongated keeled scales. Cheek-teeth flattened trans- 

 versely, and bluntly 2-lobed at the tip; palate toothed. 



The Carapopeba. Acrantus Teyou. Lacerta Teyou, Daud. 

 Rept. iii. 195. Tejus viridis, Merr. Tent. 60. Gray^ Ann. N. H. 

 i. 277. Dum. et Bib. E. G. v. 143. Ameiva oculata, D'Orbig. 

 Voy. A. M. t. 5,/. 1, (toes wrong). Carapopeba, ili«rc. Braz. 238. 



Green, with a series of black spots and 2 pale streaks on each 

 side ; front of arm shielded ; the third shield on the outer side of 

 the under part of the hind leg very large ; preanal shield 4-sided. 



a. Half-grown, in spirits. The second and third shields on one of 

 the legs united into one. From the Berlin Museum. 



II. Throat with a collar of large shields. 



a. Collar and ventral shields lanceolate, imbricate, heeled. Thighs 

 scaly beneath. Nostrils between two nasal plates. Tail round. 

 Toes 5-5, compressed , not keeled beneath. Tongue enlarged be- 

 hind, and sheathed at the base. Palate toothed. Teeth com- 

 pressed, 3-lobed. Centropicina. 



7. AcANTHOPYGA, Gray. Pseudoameiva, Fitz. 



Scales of the back larger, keeled in 17 or 25 series, keels con- 

 tinuous, of the sides granular; collar toothed. 



The Steiated Spine-tail. Acanthopyga striata. Gray. Ann. 

 N. H. i. 278. Lacerta striata, Daud. Rept. iii. 247, from Merrem, 

 Wetter Ann. \. i. 1. Pr. Max. t. 13. Guerin, Icon. t. Gray, 



Giiffith, A. K. i. 31, Dum. et Bib. E. G. v. 151. Weigm. H. M. 9. 



Olive, with white streaks, sides spotted. 



Inhab. Surinam. Mus. Paris and Levden. 



8. Centropyx, Spix. Trachygaster, Wagler. Acanthopyga, 

 Leach. Pseudoameiva, Fitz. 



The scales of the back moderate, ovate, keeled, in many (40) 

 series, of the sides rather smaller, of the belly very large ; scales 

 of the collar not prolonged beyond their free edge. 



