28. TJRANISCODON. — 29. STROBILURUS. 181 



than twice the length of head and body. Greyish-olive or greenish 

 above, si:)otted or marbled with dark brown, which colour forms 

 more or less distinct cross bands on the back and limbs ; a collar of 

 black marbiiugs ; lower surfaces whitish, throat black. 



luillini. uiilliiji. 



Total length 394 Fore limb 82 



Head 33 Hind limb 1 23 



Width of head 33 Tail 250 



Body Ill 



South America. 



a-b, c. c? , 2 , & vg. Island oi fxranada. 



d-e. d" 2 . " Trinidad. 



/',(/. 1^ ?. Venezuela. 



h. $ . Demerara Falls. 



t. 2 • Pebas. 11. W. Bates, Esq. [C.]. 



k. Yg. Pallatanga, Ecuador. Mr. Buckley [C.]. 



l-m. J & hgr. Cayaria, Peru. Messrs. Veitch [P.]. 



n. (5 . S. America. 



29. STROBILTJRUS. 



Strobilurus, Wief/m. Herp. Mex. p. 18; Diim. k^- Bihr. \\. p. 35.3; 

 Fitzing. Sijst. Itept. p. 71 ; Gran, Cat. Liz. p. '2'1'2. 



Tympanum distinct. Bodj' depressed ; a slightly serrated dorsal 

 ridge ; dorsal scales imbricate, uniform. Upper head-scales slightly 

 enlarged, occipital very large. A curved fold in front of each 

 shoulder, not extending across the throat. Digits compressed, bent 

 at the articulations, with keeled lamelkie interiorly. No femoral or 

 pra)anal pores. Tail rather short, subcylindrical, with whorls of 

 large spinose scales. Lateral teeth tricuspid ; no pterygoid teeth. 

 A large sternal fontanelle. No abdominal ribs. 



Brazil. 



1. Strobilurus torquatus. 



Strobilurvis torquatus, Grai/, Cat. p. 222. 

 Strobilurus torquatus, Wiegm. I. c. ; Ihim. l^ Bihr. p. 354. 

 Steironotus (Strobilurus) torquatus, Fitzinrj. I. c. 

 Doryphorus spinosus, Guichen. in Caateln. Am. Mcj:, licpt. p. 27, 

 pi. vii. fig. 1. 



Snout short ; nostril small, turned upwards ; upper head-scales 

 with small granular as])erities ; a series of transversely enlarged 

 supraocular scales ; occipital as long as broad or a little broader than 

 long, as broad as the supraocular region ; seven or eight upper and 

 six or seven lower labials ; temporal scales keeled ; ear-o])ening 

 rather large, with two or three small projecting lobes anteriorly. 

 Sides of neck strongly plicate ; a strong anieliumeral fohl ; one or 

 two irregular feeble folds across the tlirout. Body short, depressed. 



