178 REPTILES, 



greenish and the spaces between the lateral spots vivid 

 brick red. Ind. {Jordaii) and W. 



6. BASCANIUM, Baird and Girard. Black Sxakes. 



> (Joryiyhodon^ Dumeril et Bibron. 



1. B. constrictor, (L.) B. & G. Black Snake. Lus- 

 trous pitch black, greenish below, chin and throat white; 

 young olive with rhomboid blotches ; large, rather 

 slender; scales 17 (rarely 19); G. 170 to 200; L. 50 to 

 60. E. U. S., common E. and S. 



7. PITYOPHIS, Holbrook. Pine SJ^akes. 



1. P. melanoleucus, (Daud.) Holb. Pine Snake. 

 Bull Snake. White, with chestnut brown blotches 

 which are margined with black, besides other markings; 

 scales 29; G. 220 to 230; L. 60. Pine woods; N. J. to 

 Ohio and southward. 



2. P. say/, (Schlegel) B. & G. Western Pine Snake. 

 Whitish or reddish, with many dark blotches and spots; 

 scales usually 25; G. 220 to 230; L. 40 to 70. Western, 

 E. to Wis 



8. COLUBER, Linnaeus. Racers. 

 > Scoto2')his^ B. & G. 



1. C. guttaius, L. Spotted Racer. Red brown with 

 a dorsal series of large, red, dark - edged blotches; belly 

 checkered with black; scales 27; G. 210 to 230; L. 50. 

 Viro-inia and S. 



2. C. obsoletus, Sav. Pilot Snake. Racer. Lustrous 

 black, some scales white -edged; vertical plate longer 

 than broad; scales 27; G. 235; L. 50 to 75. Mass. to 

 Ills, and Texas; one of our largest snakes. {G. alle- 

 ghanieiisis^ Holbr.) 



