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Maxillary bones extending forwards beyond the palatines, as in Sepedon, with a pair of large poison-fangs; no other maxillary teeth. Head slightly distinct from the neck. Eyes of moderate size, with round or vertically elliptic pupils. Rostral shield very large, detached on the sides. Body cylindrical; scales oblique, smooth or keeled, in 19–23 rows; ventrals rounded. Tail short, obtuse; subcaudal scales in 2 rows.

(1) A. lubricus.—146–167 ventral scales; 20–28 subcaudals.

Colour orange or red, with black rings; a black bar below the eyes; upper surface of head sometimes entirely black.

Total length, 590 millimetres; tail 55.

Habitat: Cape Colony and Namaqualand.

(2) A. scutatus (Fula-fula of Mozambique).—115–135 ventrals; 24–38 subcaudals.

Colour pale grey, with black spots or cross-bars, and a black mark shaped like a circumflex accent on the head. A black collar encircling the neck, and a black vertical streak below the eye. Belly whitish.

The total length may be as much as 520 millimetres.

Habitat: Natal, Delagoa Bay, Mozambique.