288 
REPTILES. 
ORDER II.—SAURIA. 
Body elongated, covered with scales ; four feet for the most 
part; some have claws, and others are without them ; tail more 
or less elongated; mouth furnished with teeth. 
TRIBE I..-CROCO DILID.®. 
Genus 1.—G A VIA LA.— Cuvier. 
Generic Character. —Muzzle contracted, cylindrical, greatly 
elongated, spatuliform towards the point, tip acute ; teeth near¬ 
ly equal; hind legs serrated on the external margin; feet pal- 
mated to the claws. 
Gaviala Gangetica. — Gangetic Crocodile. 
Plate LX IX. fig. 4. 
Muzzle as long as the head, contracted; superior jaw with 28 
teeth on either side, lower jaw with 25 ; neck protected by two 
carinated plates; eyes very large ; cranium with a deep indenta¬ 
tion behind the eyes. Eighteen feet long. Inhabits India. 
Genus 2. — CROCODILUS. — Cuvier. 
Generic Character. —Muzzle oblong, conoid, depressed; teeth 
of unequal length, fourth tooth in the under jaw lying along a 
groove in the upper; legs serrated; feet palmated. 
Crocodilus vulgaris. — The Common Crocodile. 
Plate LX IX. fig. 5. —The Egg, fig. 6. 
Dusky on the upper parts, cream-yellow on the under parts; 
tibial division of the legs varied with deep yellow, clouded in 
some places with sea green; fourth tooth of the lower jaw fit¬ 
ting into a groove in the upper one; with six rows of carinated 
square plates, covering the back; neck protected by six plates ; 
upper side of the tail provided with a double bluntly serrated 
ridge, equal in length to the head and body. Thirty feet long. 
Inhabits the rivers of Africa. 
Genus 3. — ALLIGATOR. — Cuvier. 
Generic Character. —Snout broad and blunt; teeth unequal, 
