G. tristis.—Ventral scales 165-179; subcaudals 38-52.
Colour dark brown; occiput often yellowish, or pale reddish-brown; belly yellow.
Total length, 900 millimetres; tail 125.
Habitat: North-eastern Australia and South-eastern New Guinea.
(c) Pseudelaps.
Maxillaries extending forwards as far as the palatines, with a pair of large grooved poison-fangs, and, after a wide interval, 8-12 small grooved teeth. The anterior mandibular teeth are of large size, almost like fangs. Head hardly distinct from the neck; eyes small, with vertically elliptic pupils. Body cylindrical; scales smooth, in 15-17 rows. Tail moderate or short; subcaudal scales in 2 rows.
(1) P. muelleri.—Scales in 15 rows. Nasal shield divided, in contact with the præocular; 2 + 2 temporals; 139-176 ventral scales; 21-35 subcaudals.
Colour brown, with a light vertebral line; a more or less distinct dark, light-edged streak on each side of the head, passing through the eye; belly yellowish or coral-red; uniform or spotted with black.
Total length, 500 millimetres; tail 70.
Habitat: Moluccas, New Guinea, New Britain.