VIPEEA COENUTA. 



The scales of the temples and posterior parts of head ovate and carinated, 

 of the upper and anterior parts, subcircular and carinated, and of the sides 

 of the head before the eye, small and without keels. The scales of the body 

 and tail ovate and all strongly carinated, except the row of each side of the 

 body which adjoins the abdominal plates. On the body the scales are 

 disposed in oblique transverse rows, twenty-five in each. The abdomen is 

 rather flat and of moderate width, the subcaudal scales six-sided, and are 

 replaced near to its tip by scales like to those on its upper surface ; the scales 

 between rami of lower jaw in front of abdominal plates small, somewhat 

 five-sided and imbricate. Abdominal plates of individual figured, 125 ; 

 subcaudal scales 25. Length from nose to tail 12 inches; length of the tail 

 1A inches. 



VIPERA LOPHOPHRYS.— Cuv. 



Plate XXXIII. 



Colour. — Rusty yellowish brown, variegated with four longitudinal rows of 

 irregular, lengthened, blackish brown spots or stripes. The spots of the two 

 middle rows are towards the posterior parts small and irregular and on the latter 

 are in some places confluent, so as to form short waved transverse bars ; the 

 spots of the lateral rows towards the head are small, and on the tail, instead 

 of being distinct, each row fades into a sort of irregular serrated or zig-zag 

 dark line. Belly pale yellowish brown freckled with small somewhat qua- 

 drangular liver-brown spots. The sides of the head are faintly marked with 

 two brownish red bars, one running obliquely from the outer canthus of the 

 eye to the angle of the mouth, the other vertically from the inner canthus to 

 the edge of the upper lip. Many of the spots of the body have their disc 

 chesnut-brown, and several of them are edged more or less completely with 

 bluish white. Besides the spots already described, several irregular sienna- 

 yellow blotches exist principally between the central and lateral rows of dark 

 spots. 



Form, &c. — Body lengthened, cylindrical, rather thicker at the middle than 

 at the back of the head, or base of the tail ; the latter is short and rather blunt 

 at the point. The scales are strongly carinated and disposed in oblique trans- 

 verse rows, 27 in each. The spinous scales over the eyes are rather long and 



