14 OPHIDIANS. 
SYSTEMATIC TABLE OF WELL-ASCERTAINED SPECIES 
OF NORTH AMERICAN SERPENTS.* 
First GENus—CROTALUS, Linn. 
1. Crotalus durissus, Zinn. Penna., Louisiana, Miss. 
2 “  adamantus, Beauv. South Carolina. 
3. oO BIN OR aoe. 2. exaee . 
4, “lucifer, B. & G. Oregon. 
5 ‘“‘  eonfluentus, Say. Arkansas, Texas. 
6 “  molossus, B. & G. Sonora. 
‘i ‘ — Oregonus, Holbr. Columbia River. 
SECOND GeNus—CROTALOPHORUS, Gray. 
1. Crotalophorus miliarius, Holbr. Georgia, 8. Carolina. 
2. i consors, B. & G. Texas. 
3. is tergeminus, Holbr. Wis., Mich., Ohio. 
4, - Edwardsiu, B. & G. Mexico, Sonora. 
5. a Kirtlandii, Holbr. Ohio. 
Tuirp GENuS—AGKISTRODON, Beawv. 
1. Agkistrodon contortrix, B. & G. Ohio, Pa., 8. C., La. 
FourtH GENus—TOXICOPHIS, Troost. 
1. Toxicophis piscivorus, B. & G. Louisiana. 
“i pugnax, B.& G. Texas. * 
Firra Genus—ELAPS. — Fitz. 
1. Elaps fulvius, Cuv. South Carolina. 
“ tenere, B.& G. Texas. 
3d. “ tristis, B. & G. Mississippi, Texas. 
bo 
* Catalogue of North American Reptiles, by Baird and Girard. Pub- 
lications by the Smithsonian Institute, Washington, 1853. 
