340 TEIID^. 



1. Centropyx striatns. 



Acanthopyga striata, part., Gray, Cat. p. 23. 

 Lacerta striata, Daud. Sept. iii. p. 247. 

 Pseudoameiva striata, Fitzing. N. Class. Hept. p. 51. 

 Trachygaster striatus, Wagl. Si/st. A7npk. p. 154. 

 Teius (Centropyx) striata. Gray, Griff. A. K. ix. Syn. p. 31. 

 Centropyx striatus, part., Dum. ^- Bibr. v. p. 151. 



decodon, Cope, Proc. PMlad. Ac. 1861, p. 495. 



renggerii, Peters, Mon. Berl. Ac. 1869, p. 63. 



Posterior head-shields keeled. Gular scales rhomboidal, imbricate, 

 strongly keeled, gradually enlarged towards the middle ; the border 

 of the collar strongly dentated, formed of twelve plates. Median 

 dorsal scales very large, strongiy imbricate, with sharp keels 

 forming fourteen straight longitudinal lines ; scales on the nape and 

 on the sides small, subimbricate, keeled. Yentral plates iu fouiieen 

 longitudinal and thirty-two transverse series. Six longitudinal 

 series of enlarged keeled brachial scales and five of antebrachials, 

 the keels of third and fourth of former continuous with the keels of 

 fourth and fifth of latter. Ten rows of femoral plates and about 

 twelve of tibials. Femoral pores seven. Male with two large 

 praeanal spines on each side. Olive ; a few black spots on each side 

 of the anterior part of the body. 



millim. millim. 



Total length 307 Fore limb 34 



Head 23 Hind limb 61 



Width of head .... 15 Tail 215 



Body 69 



Northern South America. 

 a. (S. ? 



2. Centropyx intermedins. 



Acanthopyga striata, part., Gray, Cat. p. 23. 

 Centropyx calcaratus, Gray, I. c. 

 Merrem, Arm. Wetterauisch. Gesellsch. i. 1809, p. 2, pi. i. 

 Lacerta striata {non Daud.),3Ierr. Tent. p. 65. 

 Teius (Centropyx) intermedius {Schley.), Gray, Griff. A. K. ix. Syn. 



p. 31. 

 Centropyx striatus, part., Dtim. ^- Bibr. v. p. 151 ; Troschel, in 



Schomburgk, Reise Brit. Guian. iii. p. 661. 



intermedius, Cope, Proc. Ac. Philad. 1861, p. 496. 



borckiana, Peters, Mon. Berl. Ac. 1869, p. 64. 



Distinguished from the preceding by the much smaller dorsal 

 scales, the keels of which are not continuous, but directed towards 

 the median line of the back. Ventral plates iu fourteen or sixteen 

 longitudinal and thirty-three to thirtj'-five transverse series. 

 Femoral pores eleven to fifteen. Digital denticulations stronger. 

 Olive ; a light line on each side, beginning from the eye, bordered 



