34 NORTH AMERICAN BATRACIIIA AND REl'TIIJA. 



23. O. getulus^ var. sayi, (Holb.) Cope. King Snake. 

 Above black, with a yellow spot in the center of each scale ; 

 these spots sometimes form interrupted transverse lines across 

 the back; the scales between with indistinct or obsolete spots; 

 abdomen yellowish white with black blotches; G. 210-225. 

 From Alleghany to Rocky Mountains, north to Illinois; Wis- 

 consin (Hoy.) 



h. Predominating color not black. 



24. 0. doliatus^ subsp. doliatus^ (Linn.) Cope. Corn 

 Snake. Color red (in alcohol, yellowish); back crossed by 

 pairs of narrow black lines, between which are yellow ones; the 

 lines of each pair separate on sides and become confluent with 

 the nearest one of the adjacent pair; abdomen varied irregu- 

 larly with black; G. 190-215. Marjdand to Kansas; Illinois, 

 Arkansas, Louisiana, and Texas. 



25. 0. doUatus^ subsp. coccineus^ (Schl.)Cope. Red Snake. 

 The same as last, except that the black lines are not confluent 

 with those adjacent, but form black rings extending around the 

 body, the ends of which sometimes meet on the abdomen and 

 sometimes not; G. 180-210. Florida to New Mexico ; Kansas; 

 Illinois. 



26. O. doliatus, subsp. triangulus^ (Boie.) Cope. Milk 

 Snake. Color above grayish ash, with a dorsal series of about 

 fifty chocolate blotches and two other series on each side. The 

 dorsal ones about four scales long and 12-15 wide, separated by 

 intervals of one and one-half to two scales ; beneath yellowish- 

 white, with square black blotches; G. 200-215. Virginia to 

 Canada; Iowa and Wisconsin. 



27. O. rhombomaculatus, Holb. Color above light chest- 

 nut, with a dorsal and two lateral series of darker rhomboidal 

 blotches; the dorsal ones, about fifty in number, one and one- 

 half to two and one-half scales long, six or seven wide, and 

 separated by intervals of about three scales; beneath reddish- 

 yellow, obscurely blotched with light brown; G. 200-205. 

 !North Carolina, Georgia, Illinois. 



B. Dorsal rows 25. 



28. 0. calligaster, Say. Above light olivaceous brown or 

 gray, with a dorsal series of about 60 subquadrangular, ennargi- 

 nate, dark chestnut-brown blotches from head to tip of tail ; two 

 smaller latei^al sei-ies on each side. Illinois to Kansas and 

 Arkansas. 



