69. Trimesurus leptocephalus.
Lacepede described this species twice, once as a Boa, and then as a Trimesurus. Mr. Schlegel observes that there is one of Baudin's original specimens in the Leyden collection, and that the scales are not in the least keeled, though Lacepede described them to be so. Lesson believing it to be an undescribed species formed for it his genus Acanthophis; Wagler has also formed two genera for this single species; and Cuvier formed from a variety of it with subcaudal bands a third genus, under the name of Oplocephalus.
70. Trimesurus olivaceus, Gray.
Olive-green, scales black; head dark with a black streak along each side, enclosing the eyes and united by a black band across the nape; lips, and beneath white; lips and chin black dotted, front of ventral shields blackish, throat scaly, chin shields two pairs. Under the epidermis bluish green; body elongate, tapering; tail moderate tapering, subeaudal shields one-rowed, longer towards the tip; scales all smooth, imbricated, subequal, rather larger below; head small, rather tapering in front, rounded; eyes rather small, pupil round, head shields normal; the nostrils lateral in the suture between two shields, hinder shield elongate; loreal shields none; one large anterior and two moderate post-ocular shields; labial shields subequal, lower temporal inserted.
Inhabits New Holland. Dr. Mair.
71. Calamaria diadema, t. 5 f. 3.
Body cylindrical, scales small; ventral shields brown, rounded; tail rather short, tapering; subcaudal plates two, round. Head small, indistinct, moderately long; head shields normal, first frontal small; nostril lunate, in the middle of a triangular nasal shield; no loreal; one rather large upper anterior, two posterior ocular shields, lowest largest; temples shielded; labial shield moderate. White dorsal scales with a distinct brown edge; head and nape black, with a broad white occipital band; beneath white.
New Holland. Dr. Mair.
72. Calamaria annulata, Gray. Snake, n. 2. White's Journal Appendix 259 f. 2.
White (in spirits) with twenty-eight black rings (twenty-five on the body and three on the tail;) head with two black bands, one on the end of the nose and the other with the eyes in front of it. Tip of the tail black; eyes small, pupil round; nostrils in the centre of a shield, lateral, erect; loreal shields none; one anterior oblique, and two small post-ocular shields.