AMPHIBIA. SERPENTS. 8. Coluber. 691 
luhabits Yemen in Arabia : above a cubit long, and not as thick 
as a finger ; without fpots, above copper-aih, the edge of the 
fcales whitilh, beneat white. 
Head oval, obtufe ; fcales of the crown large, the middle one 
between the eyes exceeding the reft. 
Cellar ^ 
Plates of the belly 187 ; fcales of the tail 130,. 
Inhabits South America und India; behind the eyes, and on 
the crown brown, beneath green, with a yellow line each 
fide. 
^'^S'claris, 
Plates of the belly 210 ; fcales of the tail 83. 
Inhabits Egypt, Whitilh with a triple longitudinal row of 
rhomboid brown fpots. 
Plates of the belly 195 ; fcales of the tall io2. 
Inhabits Egypt. Black ; throat blood-red. 
Plates of the belly 198; fcales of the tall 100. 
Inhabits Ihrubby and low places on the fhores of the Cajpian. 
Sea; is fearful of man, unlefs when irritated, when it vio- 
lently attacks him, running along the ground with its head 
ereft and making a loud hilling ; above 5 feet long ; abo\»c 
alternately banded with yellow and brown, beneath yellow. 
Eyes globular, pale brown ; jaws with 2 rows of fraall, fharp 
teeth ; back and fides covered with 18 rows of fcales, yelloty 
in the middle, and white at the edge. 
Plates of the belly 202 fcales of the tail 96. 
Inhabits the Eajl. 
Plates of the belly 209 ; fcales of the tail 90. 
Inhabits AJrica. Le^d-colour with teftaceous bands ; body rc- 
fembling C. natrix ; head with a Ihining fliield in the mid- 
dle of the front between the eyes, fuboval, confifting of 
many-fhaped plates ; fides of the head and hind-head covered 
each fide with imbricate leaks ; fnout fharp. 
White, with fpots on the back which on the fore-part are 
roundilh, and become gradually rhomboid, reddilli at \ 
the edge. 
3 ' Blueilh, with a quadruple feries of black qcellate fpots, 
blue in the middle and longitudinally difpofed, 
4T2 
4. Blueilh- 
