Academy of Science. 8o 



2. S. . Refomd to Scotophis, but dues not agree in all ])arliculars 



Douglas county. 



OPHIBOLUS. 



1. 0. C(dligaster, Say. Kennicoti's Chain Snake. Douglas county. 



2. 0. getulus, variety Sayi, B. and G. King or Egg Snake. Douglas county. 

 Collected by Mr. J. Savage. 



3. 0. eximius, B. and G. House, Milk or Chicken Snake. Douglas county. 



4. 0. gentUis, B. and G. Wallace county. Collected by Prof. Snow. 



5. —. Species not determined, probably new. Douglas county. 



6. 0. -. Calico Snake. (Snow.) Species not determined. Agrees with 



0. doUatus in having the head red ; Aviih 0. gentilis in having sides blotched ; dif- 

 fers from both in having thirty-five pairs black rings. Very common. Douglas 

 count}'. 



BASCANION. 



1. B. constrictor, B. and G. Black Snake. Douglas county. 



2. 5. i''oa;u', B. and G. (•?). Douglas county. 



3. B. flaviventris, Say. Blue Racer. Very common in Douglas county. 



MASTICOPHIS. 



1. M. flamgularia, B. and G. Coach-whip Snake. Wallace county. Collected 

 by Prof. Snow. 



DIADOPHIS. 



1. BiadopJds pimriatus, hinn. Ring-necked Snake. Douglas county. Collected 

 by Prof. Snow. 



CELUTA. 



1. C. vermis. Worm Snake. Douglas county. 



•CROTALID.^. 



CKOTALUS. 



1. C. confluenius, Say. Osborn City. Collected by R. B. Foster. 



2. r' (?). Differs from any specimen described by Baird and Girard in 



having but twenty-one rows of dorsal scales. The general color is light cinna- 

 mon ; skin between scales, sulphur yellow. The transverse dorsal bands, twenty- 

 five in number, are black, very short, only two or three scales longitudinally. Dor- 

 sal line, of chestnut, three scales wide. Tail black ; abdomen white ; sides of 

 scutellfE mottled with black ; cheeks white. Douglas county. Obtained by Prof. 

 Snow. 



CROTALOPHORUS. 



1. C. tergeminiis, B. and G. Prairie Rattlesnake. Massauga. Douglas county. 



AGKISTRODON. 



1, A. coiitortrix, B. and G. Coi)perhead. Douglas county. 



