e 
AMPHIBIA. SERPENTS. 8. Coluber. 675 
Body tawny-afli with white tranfverfe veins. 
Inhabits America ; refembles C. vipera. 
Body equal, lleftder, with a lateral and dorfal longttudinAl 
line, the latte^ forked nc^r the eyes. 
Inhabits Africa ; is probably oniy a variety of C. vjpera. 
Head indiffinfl ; a black tranfverfe band above the eyes. 
Like the two next, fhakes its icales when about to fpnng on its 
prey, and gives notice of its approach by a crackling kind Ot 
inadin this, as well as the 2 next, imbricate with fcales; 
featcd on the top of the head ; plates md/ca(es lax, carinate 
and moveable, which makes the colour of the tedy change- 
able ; they are large, bounded, white at the edge, iome thicker, 
blackilh, and a few cinereous. 
Head indiftina ; keel of the fcales oft the chin with a white 
fpot ; tail very flendet. 
Inhabits Ceylon and Cuba. ■ c ,1,™ 
Plates and fcales large, rounded, brown, a few of them 
yellow. . 
1 ^ 
Plates of the belly 131 ; fcales of the tail 22. 
Ho^y^whh r quadruple row of brown eye-like fpots with a 
/feld'heSed, gibboiis, with 4 or ™°re black' fpots ; fcalis 
lanceolate. 
d 
‘^op«s. 
(? 
''rii. 
Plates 6^ the belly 127 ; fcales y the tml about 32. 
Inhabits the interior parts of AJrica ; 35 inches long. 
Olive-brown freckled with blackilh, with a row of pale dorkl 
fpots furrounded by black, and a flexous pale band on the 
ffdes ; ir//;' pale olive with dulky fpots. _ , 
Head with 2 large lharp horns on the top of the nofe, J"chnmff 
a little backward, fomewhat flexible, and nearly triangular, 
h.lf » i»ch long ; .. th. b.fc of .0 opg . 
ftrong fcale, neatly the lhape of the horn itlelf ; fangs larg , 
long;/cc/« harfti, ftiff, flrongly lerrate. 
Plates' of the belly tio ; fcales of the uil 5b. 
Inhabits Canada. Linear ftreaked with black. 
