REPTILES. 
“299 
Sub-Division I.—Jaws not capable of dilation. 
Genus 4.—AMPHISBiENA.— Linnaeus. 
Generic Character. —Body encompassed by circular anima¬ 
tions of quadrangular scales; a row of spiracles before tbe anal 
region ; teeth few, and in the jaws only ; oviparous. 
Ampliisbccna alba. — The White Amphisbjena. 
White •, head covered by six large scales; anal region sur¬ 
rounded by eight small tubercles. Eighteen inches long. In¬ 
habits America— Shaw, III. pi. 134. 
Genus 5. —TYPHLOPS.— Schneider. 
Generic Character. —Snout depressed, provided with plates ; 
tongue long, bifurcated ; eyes scarcely visible ; body covered 
with small imbricated scales ; anus near the extremity of the 
body. 
Typhlops lumbricalis. — The Worm-Shaped Typhlops. 
Fore part small, posterior portion thicker; of a livid bluish- 
white colour. Eight inches long. Inhabits South America. 
Sub-Division II.—Jaws capable of great dilation. 
* Body cylindrical; tongue short. 
Genus 6.—TORTRI X. — Oppel 
Generic Character. —Abdominal scales, and those under the 
tail, larger than the others; tongue thick and short; tail very 
short. 
Tortrix ater. — The Black-Banded Tortrix. 
Body white, furnished with black bands. Seventeen inches 
long. Inhabits South America. 
** Occiput more or less gibbous; tongue forked, and exten¬ 
sible to a considerable degree. 
Genus 7.—BOA.— Linnaeus. 
Generic Character .—Anal region provided with a book on 
each side; body compressed, inflated towards the middle ; tail 
