Mr. Bell on Leptophina — Dryinus. 325 



jeneus. Dr. supra fuscus^ suhtus palUdior^ aureo nitens^ rostro 

 acuminatoy mobilL 



Scuta abdominalia. 

 Scutella subcaudalia. 



Spix Sf Wagler Serp. Nov. Braz. t. 3.^. 12. 

 Habitat in Braziliae sylvis, prope fluvium Simoens. 



Brown above, paler beneath, shining with a golden lustre; 

 rostrum acuminated, moveable. 



AURATUS. Dr.griseo'Jlavescens, aureo pallide niiens^ albido nigro' 

 que punctulatus ; rostro subobtuso. 



Scuta abdominalia, 196. 



Scutella subcaudalia, 160. * 



Habitat in Mexico. 

 Mus. nost. 

 Tab. nost. XII. 



Yellowish grey, shining with pale gold colour, dotted with 

 whitish and black; rostrum subobtuse. 



Description. 



The head is very flat, and considerably elongated, the upper 

 jaw extending about a line beyond the lower; the rostrum 

 straight and rather obtuse. The opening of the mouth is long and 

 slightly waved. The scu(a covering the head, which, as in all the 

 species of the family, are nine in number, extend farther back 

 than in most others of the genus. The scales of the body are 

 oval, narrow, rather pointed, imbricate, very flexible, and a little 

 turned up at the apex. The abdominal scuta are little less than 

 two lines long, whilst their breadth is barely three lines. The 

 tail is excessively slender and slightly quadrangular, the apex 

 acute. 



The general colour is light grey, with a slight cast of pink, vary- 

 ing with light gold colour, and of a metallic lustre. The whole 

 body is spotted with minute blackish and whitish dots. It is 

 paler and more uniform beneath. The upper part of the head is 

 of an uniform grey. A flne black line runs from the nostrils back- 



