SNAKES. 69 
occipital shield rather larger than the vertebral ; fourth upper labial 
large under the eyes. 
a. In spirits. Adult. Tropical America. 
b. In spirits. Adult. Tropical America. From Parreyss’ collection, 
Vienna. 
“ Uranops angulatus, Parreyss. 
ce. In spirits. Young. Pale olive, with numerous broad lozenge- 
shaped cross-bands, the narrow part forming a rather irregular 
line across the belly. Tropical America. Presented by the 
Royal College of Surgeons. 
21. TAcHYNECTES. 
Head moderate, depressed: frontals 3; anterior triangular, 
advanced between the nasals: eyes very small: scales ovate, trun- 
cated, strongly keeled: tail elongate. 
Tachynectes, Fitz. Syst. Rept. 25, 1843, no character. 
1. The Tacuynectes. Tachynectes Leopardina, Fitz. Syst. 
Rept. 25, 1843. Dimades Leupardina, Gray, Zool. Misc. 65. Ho- 
malopsis Leopardina, Schlegel, Phys. Serp. 359, 65. 
Red-brown, with five rows of darker spots placed in quincunx ; 
paler beneath, with alternate darker spots: a pale streak from each 
eye, united behind, forming a collar. 
Inhab. P Mus. Leyden. 
22. TRoPIDOPHIS. 
Head rather depressed; crown shielded; occipital shields 
large: nostrils sublateral, on the upper edge of a single shield, with 
a groove beneath it: one high anterior and three posterior equal 
oculars: loreal single: labial shields moderate, uniform; fourth 
and fifth forming part of the orbit; hinder larger, undivided: eyes 
large, sublateral: body fusiform: scales keeled, ovate, and longitu- 
dinally striated: tail short, conical. 
Like Tropidonotus, but anterior frontal and nasal shield single. 
Tropidonotus sp., Schlegel, Phys. Serp. 
1. The Curirree. Tropidophis Schistosus. Chittee, Russell, 
Ind. Serp. ii. t. 4. Coluber Schistosus, Daud. Rept. vii. 132. Mer- 
rem, Tent. 103. Tropidonotus Schistosus, Schlegel, Phys. Serp. 
319, n. 13. Tropid. mestus, Cantor, Zool. Soc. 1838, 54? 
