SNAKES. 93 
the outer upper edge; the four or five hinder pair of the lower pre- 
ceding the three last pair pitted. Pale olive-green (in spirits): upper 
lip and beneath pale yellowish: occiput scaly, with one pair of 
larger shields. 
a. In spirits. Adult. N. Australia, Port Essington. From Mr. 
Gilbert’s collection. 
b. Stuffed. N. Australia, Port Essington. From Mr. Gilbert's 
collection. 
ce. In spirits. Adult. Sir Charles Hardy’s Island. Presented by 
J. B. Jukes, Esq. 
5. NArpboa. 
Head scaly; muzzle regularly shielded to between the eyes, 
without any anterior frontals: nostrils lateral, in a single plate: eyes 
lateral ; pupil elliptical, erect: upper labial shield flat; hinder lower 
labial pitted: scales smooth: subcaudal plates two-rowed. 
Teeth and shields of a Python, not a Tortria as believed by M. 
Schlegel. 
Nardoa, Gray, Zool. Mise. 45, 1842. Dum. § Bib. Erp. Gen. 
vi. 444. Tortrix sp., Schlegel, Phys. Serp. Bothrochilus, Fitz. 
Syst. Rept. 24, 1843, no char. 
* Hinder frontal very large, front one small ; rostral much depressed. 
1. The Narvoa. Nardoa Schlegelii, Gray, Zool. Misc. 44. 
Dum. §& Bib. Erp. Gen. v. 447. Tortrix Boa, Schlegel, Phys. Serp. 
ii. 22. Abbild. 45, ¢. 13. Bothrochilus Boa, Fitz. S. R. 24. 
Black and white ringed ; three penultimate pairs of lower la- 
bials pitted; loreal scales small; anterior ocular single, posterior 
two. 
Inhab. New Ireland. Mus. Paris, one specimen. 
** Frontals moderate; middle largest. 
2. Gitpert’s Narpoa. Nardoa Gilbertii, Gray, Zool. Misc. 
45,54. Dum. & Bib. Erp. Gen. vi. 446. 
Pale (in spirits): back with five longitudinal series of dark 
olive spots, which are more or less confluent, forming cross bands, 
closer together on the hinder part of the body, appearing olive with 
irregular whitish lines: head with a black streak above the lip 
through the eye to the side of the neck: head-shields brown, with a 
