Total length, 490 millimetres; tail 32.
Habitat: Dahomey.
(9) A. micropholis.—Temporal shields small, 2 + 3 or 4; fourth or fifth infralabial larger; scales on the body in 25 rows; 210-215 ventrals; 29-30 subcaudals. Frontal shield slightly longer than broad, much longer than the parietals.
Colour uniform dark brown.
Total length, 330 millimetres; tail 28.
Habitat: Cape Verd.
(10) A. leucomelas.—Characters as before. Frontal one and two-fifths as long as broad, as long as the parietals.
Colour black, with a vertebral white line, occupying one row and two half rows of scales; ventrals and subcaudals white; neck black, head white, with a black spot covering the nasals and upper head-shields.
Total length, 575 millimetres; tail 40.
Habitat: Somaliland.