ORDER SAURIA. 133 



Tlie Iguana with naked Neck. (Ig. Nudicollisy Cuv.) 

 Merr. Besler, tab. xiii. f. 3. Ig. Delicatissima, 

 Laur. 



Resembles the common, especially in the dorsal 

 crest, but has no large plate under the tympanum, 

 nor tubercles scattered over the sides of the neck. 

 The upper part of the cranium is furnished with 

 convex plates, and the occiput is tuberculous. The 

 cuticular appendage is moderate, and has but few 

 denticulations, and only in front. Laureiiti says that 

 its habitat is the East Indies, but this is a mistake. 

 We have received it from Brazil and Guadaloupe,* 



The Horned Iguana of St. Domingo , Lacep. Ig, 

 cornuta^ Cuv. Bonaterre, Encyc. Method. Erpeto- 

 log. Lezards. pi. iv. f. 4. 



Tolerably like the common iguana, and still more 

 like the last; but it is distinguished by a conical 

 osseous point between the eyes, and two raised scales 

 on the nostrils. There is no large plate under the 

 ear, nor tubercles in the neck ; but the scales on the 

 branches of the jaw are embossed. 



The Iguana, with armed tail, of Carolina. (Ig. 

 cychlura, Cuv.) 



Is destitute, like the preceding two, of a large plate 

 under the ear, and small spines on the neck ; but 



* I suspect the Aniblyrhynciis cristatus. Bell. Zool. Journ. I. Sup. pi. 

 xiii., to be an individual, badly preserved, of my Ig. nudicoUis. 



