COLTJBRID^E. LXXV. 181 



spot; scales, etc., as in preceding. Va. to Iowa, and 

 northward; very common. [Coronella eximia, (DeKay) 

 Jan.] 



3. 0. ca///'gaster, (Say ) Cope. KENNICOTT'S CHAIN 

 SNAKE. Light olive gray, with about sixty quadrate, 

 chestnut colored, emarginate blotches on back and two 

 rows of smaller ones on each side; scales in 25 rows. 

 Ills, to Kansas. (0. evansi, Kenn.) 



13. OSCEOLA, Baird and Girard. SCARLET SNAKES. 



1. 0. elapsoidea, (Holbr.) B. & G. SCARLET SNAKE. 

 Brilliant red, with about fifteen pairs of jet black rings 

 on body and three on tail, each pair enclosing a white 

 ring; the black rings tapering towards the sides, the 

 white ones spreading; resembles closely 0. doliatus\ 

 scales 19; G. 175 to 180; L. 20. Va. to Fla. 



14. FARAHCIA, Gray. HORN SNAKES. 



< Calopisma, D. & B. 

 1. F. abacura, (Holb.) B. & G. RED-BELLIED HORN 



SNAKE. Blue-black with red lateral spots; eyes small; 

 scales 19; G. 175; L. 36. Southern, N. to Ills. (Nel- 

 son.) 



15. ABASTOR, Gray. RED-SIDED SNAKES. 



1. A. erythrogrammus, (Daudin) Gray. RED- LINED 

 SNAKE. Blue-black; sides with three red lines; eyes 

 very large; nostrils in the middle of nasal plate; scales 

 19; G. 180; L. 25. Southern, N. to Ills. (Nelson.) 



16. HALDEA, Baird & Girard. BROWN SNAKES. 



= Conocephatus, D. & B. 

 1. H. str/afu/a, (L.) B. & G. BROWN SNAKE. Head 



