REPTILES. 599 



the thighs ; tail compressed, carinated in some species, aod smooth in others ; 

 abdominal scales elongated ; teeth notched ; tongue forked. 



Section I. — Tail carinated. 



Section II— Tail divestea <il carina, and compressed towards the point. 



Genus 7. — AMEIVA. — Cuvier, 



Generic Character. — Head pyramidal ; tongue bifid ; tail cylindrical ; with 

 transverse rows of square scales througlunit ; those of the abdomen broader 

 than long ; scales of the throat small. 



Ameiva lemniscata. — The Striped Amciva. Plate Ixiii. fig. 3. Dusky 

 blue, with eight longitudinal stripes above ; sides and outside of thighs, with 

 small white spots ; under the thiglvs a range of tubercles. Inhabits Africa. 



Genus 8.— LACERTA.— Cuner. 



Generic Character.— Va\ate provided with tivo rows of teeth ; neck har- 

 ing a transverse collar of large scales, separated from those of the abdomen 

 by very small ones ; bone of the cranium protruding on the temples and or. 

 bits. 



Genus 9.— TACHYDROMUS.— Oener. 



Generic Character.— Body and tail very much elongated ; hack with 

 rows of square scales ; skin of the thighs having spiracles ; with two anal 

 vessels. 



TRIBE HI. — IGUA.MDJi. 



Having the general form of the lizard ; tongue not extensible, but flesliy 

 and thick, with a notch at the tip. 



Genus 10 CORDYLUS.— C«rier. 



Generic Character.— Head simple, without teeth in the palate ; back and 

 abdomen covered with transverse rows of large scales; a line of large spi- 

 lacles on the thighs. 



Gen7u \l.—STFXh\0.—Daudin. 



Generic Character. — Head produced behind ; without palate teeth ; ears 

 rounded and spinous ; body covered with sharp pointed scales ; thighs with- 

 out spiracles ; tail long, acute. 



Ge7iiis \2.—MASTlGVll A.— Fleming. 



Generic Character— Destitute of palate teeth ; scales of the body smooth, 

 and of uniform size ; tail scales larger and spinous ; spiracles under the 

 thighs. 



Genus 13.— AGAMA.— jDau(f»!. 



Generic Character.— Head tnniid ; skin of the throat wrinkled transverse. 

 !y, and capable of being inflated ; l«)dy oblong, ventricose, covered with 

 troall carinated scales, raised into ro\igh tubercles ; longer near the ears. 



Agama jnitjj'cata.— Muricated Agania. Plate Ixiii. fig. i. Brnwcish. 

 gray ; upper parts with transverse dusky bars, which ate must conspicuous 

 on the legs and tail ; scales all muiicated ; tail very long. Twelve inches 

 long. Inhabits New South Wales. 



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