INNOCUOUS SERPENTS. 141 



brown, more clear below, where it is marked with whitish 

 spots. S. 188 -\- 60. 



3. Lycodon Jar a, from India, is a small black species, 

 with a very wide white collar ; the scales are marked with 

 two fine streaks or rays. Below, whitish. S. 175 + 56. 



4. Lycodon geometricus, a large and handsome species, 

 of a thick form ; the native place unknown ; above, reddish 

 brown ; below, two streaks or rays along the flanks, and 

 another round the summit of the head, of a yellowish hue. 

 21 rows of smooth scales. S. 220 + 51. 



5. Lycodon Horstokii. Observed at the Cape and on 

 the Gold Coast ; of small size ; of an olive-bro^vn colour, 

 very shining, with the tips of the scales marked with a 

 pearly spot, a colour which sometimes forms narrow trans- 

 verse bands; below, yellowish. 17 rows of scales. S. 

 190 + 43. 



6. Lycodon unicolor. It forms, with the preceding, 

 the only two species discovered in Africa. It inhabits 

 the coast of Guinea, and is known by its uniform tint of 

 a fulginous brown, paler below ; it is distinguished from 

 the last by the number of scales and scuta, which amount 

 to 27 rows of scales, and S. 220 + 60. 



7. Lycodon formosus, a very beautiful species, of a 

 slender shape, a narrow head, a frenal plate very long, 

 extending to the eye ; the body is marked by very broad 

 alternate rings of a beautiful vermilion and a shining 

 black; the scales have black borders; 17 to 19 rows of 

 scales ; abdominal scuta vary from 168 to 220 ; subcaudal 

 divided plates 66 ; inhabits Brazil. 



8. Lycodon Clelia, is very remarkable by the variety 

 it presents ; the configuration of the head varying with 

 the individual, and the tail having sometimes simple, at 

 other times divided scuta ; colour, earth -brown, sometimes 

 pale, at other times dark ; nape ornamented with a white 

 collar ; tips of scales brown ; anterior teeth hardly longer 

 than the rest; 15 to 19 rows of scales. S. varying from 

 148 + 65 to 218 + 101. Country, Brazil and Surinam. 



9. Lycodon subcinctus. Muzzle extremely broad and 

 obtuse ; frenal plate touching the eye, on account of the 

 want of the anterior ocular ; nostrils very open ; colour, a 



