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Intermediate between V. aspis and V. ammodytes. Snout less turned up into a corneous appendage than in the latter. Head covered with small, smooth, or feebly keeled, subimbricate scales, among which an enlarged frontal shield may sometimes be distinguished; 5–7 longitudinal series of scales between the supraocular shields; 9–13 scales round the eyes; 2 or 3 series between the eyes and the labials; nasal shield entire, separated from the rostral by a naso-rostral. Body scales in 21 rows, strongly keeled; 125–147 ventrals; 32–43 subcaudals.

Coloration grey or brown above, with a longitudinal zigzag band, usually spotted with white; head with or without spots on the vertex; black streak behind the eyes; ventral surface grey, spotted with black and white; tip of the tail usually yellow or with yellow spots.

Total length, 550–610 millimetres; tail 80–85.

Habitat: Spain and Portugal.