220 REPTILES. 



and moderate supraorbital shields. Nostrils anterior, just above 

 the face-ridge, directed backwards. Neck with a cross fold below 

 and 2 stronger ones on each side. Palate toothed. Cheek with 

 1 row of unequal scales. Body rather elongate, depressed, Avith 

 small imbricate scales, not folded on the sides. Scales of the 

 back keeled, converging to the dorsal line ; of the belly smooth. 

 Back not crested. The tail long, strong, conical, with imbricate 

 keeled scales and a slight compressed crest. Limbs moderate. 

 Femoral pores none. 



* Tail roundish^ ivith a slight crest above. 



The Taraguira. Taraguira torquata. Stellio torqiiatus, 

 Weid. Ahhild. t. Gray, Griff, A. K. ix. 41. Schinz, Rept. 89, 

 t. 39,/. 1. Dum. et Bib. E. G. iv. 344. Gravenh. Act. Nat. Cur. 

 xviii. 754, t. 56, f. 13 — 18, (head). Agama tuberculata, Spix, 

 Braz. 12, t. 15, f. 1. Giierin, Icon. Rept. t. 12, f. 2. A. hispida, 

 Spix, Braz. 12, t. 15,/. 2. A. nigricollaris, Spix, Braz. 13, t. 16, 

 /. 2. A. Cyclurus, Spix, Braz. 14, t. 17, /.I. A. taraguira, 

 Licht.Doubl. 101. 



Olive, black-spotted and varied with a pale streak on each side 

 of the back, and a broad white-edged black band on each side of 

 the neck ; scales of the back of the neck and back rather small, 

 keeled ; of the base of the tail larger ; of front of ear-hole narrow 

 rather elongated, subequal ; tail very slightly compressed, with a 

 central series of rather more keeled scales above, 

 a, b. In spirits. Ears with 6 triangular scales in front. Brazils. 



Presented by Lord Stuart, 

 c, d. In spirits. Ears with 6 or 7 triangular scales. Brazils. 



From Dr. Gardner's collection. 

 e —g. In spirits. 



h. In spirits. Rio Janiero. Presented by Charles Darwin, Esq. 

 i. Stuffed. Brazils. Presented by Mrs. Parker. 



Agama semitaeniata, Spix, Lac. Braz. t. 16, /. 2, on which 

 Wagler established his genus Platynotus, appears to be allied to 

 this species, but I have not seen the specimen, nor is it referred to 

 by Dumeril and Bibron, nor seen by Weigmann. 



** Tail rather compressed, distinctly crested. 



Darwin's Taraguira. Taraguira Darwinii. 



Olive, pale-spotted, with irregular black cross bands on the 

 sides ; the bands in front of the shoulders most distinct (but not 

 white-edged) ; scales of the nape and back moderate, rather small, 

 keeled, especially at the tip, which is rather produced ; of the tail 

 larger ; on front of the ear-hole broad, short, irregular, unequal ; 

 tail rather compressed, with a central series of very compressed 

 keeled scales above, forming a low crest ; head rather elongated. 



a, b. In spirits. Brazils, Abrolhos Inlet. Presented by Charles 

 Darwin, Esq. 



