SNAKES. 17 



tisiphone, Cuvier, R, A. ii. 89, from Cateshy^ t. 43. Holbrooke N. 

 Amer. Erp. iii. 33, t. 7 (not Col. tisipbone, Shaiv). Toxicophis leu- 

 costomus, Troost, Ann. Lye. N. H. New York, iii. 176. Water 

 Mocassin or Cotton-mouth or Bastard Rattle-snake, North-Ame- 

 ricans. 



Greenish brown, black cross-banded. 



a. In spirits. Adult, partly bleached. North America. From Sir 



Hans Sloane's collection. 

 6. In spirits. Half grown. N.America. Presented by R. Harlan, 



M. D. 

 f. Inspirits. Half grown. N.America. Presented by Dr. Schaum. 



? C. atrofuscus, Holhrook. 



c. Subcaudal shields one-rowed ; tail ending in a rattle ; head more 



or less shielded. Crotalina. 



9. Crotalophorus. 



Head with nine large shields extending to behind the eyes ; 

 labial shields moderate ; temple covered with rather large keeled 

 scales. 



Caudisona, Fitzinger, N. Class. 63, 1826. Wagler, Amph. 176, 

 1830. Crotalophorus, Linn. S. N. ed. 7. Gronov. Ichth. Gray, 

 Annal. Phil. 1825, 205. Holhrook, N. A. Erp. 1842. Crotalus sp., 

 Linn. Say. 



1. The Small Rattle-snake. Crotalophorus miliarius. Gray, 

 Ann. Phil. 1825, 205. Holhrook, N. Amer. Erp. iii. 25, t. 4 (good). 

 Caudosona miliaria, Fitz. N. Class. 63. Wayler, Amph. 176. 

 Caudisona miliaris, Grai/, ZooL Misc. 51. Crotalus miliarius, Linn. 

 S. N. i. 372. Schlegel', P. S. 569, t. 20, /. 17, 18. Seha, Thes. ii. 

 t. 95, f. 3. Small Rattle-snake, Cateshy, Carol, t. 42. Merrem, Ann. 

 Wetter, i. 15, t. 3. Lacep. Q O. 4, t. 18,/. 2. 



Olive or brow^n ; crown and nape with an irregular dark brown 

 Dand on each side ; cheek dark, with a narrow white streak from the 

 back of the eye ; back with a central series of brown spots ; sides 

 with two alternating series of brown spots ; belly black marbled. 



a, b. In spirits. Young. N. America. Presented by Dr. Richard 

 Harlan. 

 Dorsal spot narrow, reddish ; dorsal streak distinct. 



c. In spirits. Young, like a, b. N. America. Presented by Jacob 



Green, M.D. 



d. In spirits. Young, like a, b ; bleached. N. America, Canada. 



Old collection. 



c 3 



