COLUBRIDA. j 33 
occurs in Africa, and also in the United States of North 
America. 
The second species, Colubrina, is composed of 6 varieties, 
made up of 16 sub-varieties, as follows, viz. : 
No. 1. Col. C. Elaphis. 3 sub-varieties. 
2.  “ Compsosoma. 4 rH 
B20 »Cynoephis. 2 ot 
me ~ Piya. 2 - 
5. “  Henelaphis. 1 sub-variety. 
6. “ Zamenis. 4 sub-varieties. 
The greater part of these are found in India; many others 
occur in South America; but, as yet, none of them are clas- 
sified. 
The third species, Dryadina, is composed of 4 varieties, 
made up of 7 sub-varieties, as follows, viz. : 
No. 1. Col. Dryadina zaocys. 4 sub-varieties. 
2. ss herpatoreas. 1 sub-variety. 
3. “ guttatus. 1 sub-variety, or Corn 
Snake; abounds in North America, 
and is from 5 to 6 feet long. 
4. 4 arboreum virides. 1 sub-variety ; is 
the North American Green Snake. 
The fourth species, Natricina, is composed of 4 varieties, 
made up of 17 sub-varieties, as follows, viz. : 
No. 1. Col. natricinus tropidonotus. 13 sub-varieties. 
2. atretium. 2 ““  Chittee R. 
3, % xenochrophis. 1 sub-variety. 
4, si prymnomiodon. i x 
5. Col. natr. atretium, has a sub-variety, called Chittee 
in India, described as follows, viz, : 
Abdominal scuta 154, subeaudal squame 67 = 221. Length 1’ 7/7; tail 
