Total length, 700 millimetres; tail 75.
Habitat: Tropical and South Africa, from the Gambia to the Cape.
(2) C. resimus.—Snout prominent, more or less turned up; scales in 19-22 rows; 134-152 ventrals; 17-25 subcaudals.
Colour greyish-olive on the back; uniform white on the belly.
Total length, 470 millimetres; tail 40.
Habitat: Central and East Africa, Angola.
(3) C. defilipii.—Snout prominent, more or less turned up. Scales in 17 rows; 113-125 ventrals; 10-18 subcaudals.
Colour grey or pale brown above, with a series of large rhomboidal or V-shaped blackish-brown spots; a large A-shaped dark brown mark on the occiput; an oblique dark streak behind the eye; supralabial shields edged with black; belly yellowish.
Total length, 400 millimetres; tail 22.
Habitat: Central and East Africa, Transvaal.