CATALOGUE OF VERTEBRATES. 647 



numbers in Sussex and Warren counties. They feed upon very 

 young mice and the eggs of birds, in the spring."— [C. C. A.J 



OPHIBOLUS, Bd. & Grd. 



(Coronella. Iiampropeltis.) 



O. getulus, L. Chain Snake. Thunder Snake. King Snake. 



Black, with narrow yellow lines forking on flanks, each fork 

 embracing a large black spot; belly checkered. Number of 

 rows of scales, 21 ; gasterosteges, 210 to 225; length, 50 inch^ps. 

 Maryland and South. — Jordan. 



" This large serpent is found only in the southern counties. 

 It is perfectly harmless. It is called also ' pine snake.' " 



O. doliatus, L. Ked Snake. Corn Snake. Calico Snake. 



Red, with twenty to twenty-five pairs of black rings, each set 

 enclosing a yellowish one; head red. Number of rows of 

 scales, 21; gasterosteges, 180 to 210; length 30 to 50 inches. 

 Maryland and South. Very variable, and grades into following 

 species or variety. 



" Very similar to the next in all its habits. Perhaps not as 

 frequently met with. The food of this and the following species 

 renders them of value to the agriculturist, in many ways." 



Var. triangulus, Boie (C. eximia, Be K.) Milk Snake. House Snake. 

 Spotted Adder. 



Grayish, with three series of brown, rounded blotches bordered 

 by black ; about fifty of them in the dorsal row ; an arrow- 

 shaped occipital spot. Scales, &c., as in preceding. Ranges 

 more northerly. 



" Not very abundant, and is a stupid, inoffensive species. It 

 feeds principally upon mice and moles." 



OARPHOPHIOPS, Gerv. 



(Celuta, Bd. & Grd.) 



O. amcenus, Say. Ground Snake. Milk Snake. 



Chestnut brown, glossy ; belly salmon red ; head small. 

 Number of rows of scales, 13 ; gasterosteges, 120 to 130 ; length, 

 12 inches. 

 " This common little snake is well known to farmers as having 



