REPTILES. 
301 
Genus 1L—HURRIA.— Daudin. 
Generic Character. —Body with a single row of longitudinal 
plates underneath; tail with a double row. No species described. 
Genus 12.—DIPSAS.— Laurenti. 
Generic Character. —Head broader than the body, which is 
compressed ; ridge of the back provided with larger scales than 
those on the rest of the animal. 
Dipsas Indica.—- The Bull-Headed Dipsas. 
Brown, with broad transverse grayish-white bars ; tail long 
and slender. •Four and a half feet long. Inhabits Ceylon.— 
Shaw, III. pi. 109. 
Genus 13.—COLUBER.— Cuvier. 
Generic Character. —Abdomen with transverse plates, sub¬ 
divided under the tail, or forming a double row; head depressed, 
with nine larger plates ; teeth nearly equal; destitute of poison 
fangs. 
Coluber natrix. — The Ringed Snake. 
Body cinereous, spotted with black along the sides, and three 
white spots forming a collar round the neck; scales carinated. 
Four feet long. Inhabits Britain.— Pennant's Brit. Zool. III. 
pi. 5. 
Genus 14.—ACROCHORDUS.— Hornsted. 
Generic Character. — Body much thicker than the tail, both 
are covered with small uniform tuberculous scales ; jaws pro¬ 
vided with two rows of teeth. 
Acrochordus Javensis .— The Java Acrochordus. 
Black above, white beneath ; sides gray, spotted with black, 
or dusky; head truncated and depressed; body thickening to¬ 
wards the tail, which is greatly smaller than the body. Eight 
feet long. Inhabits Java.— Shaw, III. pi. 128. 
**** Mouth provided with poison fangs. 
Genus 15. — PSE UDOBO A.— Oppel. 
Generic Character. —Head short, covered with large plates ; 
2 B 
