THE REPTILES OF OHIO 51 



Union Twp. (CSNH 1200, 1403). Columbiana County: 3 mi. S of Salem (TZS 

 1610). Coshocton County: Near Linton Mills (TZS 1904). Galua County: 1 mi. 

 S of Evergreen (TZS 410). Geauga County: I mi. N of Bundysburg (TZS 1037). 

 Guernsey County: North Salem (TZS 1905-7); Wheeling Twp. (TZS 865-6). 

 Hamilton County: (CSNH 1974); Cmcinnati (CSNH 1663); Fern Bank (CSNH 

 1160). Harrison County: Scio (DOR). Highland County: N side of Ft. Hill. 

 Brush Creek Twp. (TZS 571); Hillsboro (TZS 1652, 1745-6); Sinking Spring (TZS 

 572). Hocking County: Salt Creek Twp. (TZS 1083). Jackson County: Buckeye 

 Creek, 4 mi. W of Jackson (TZS 304); Jackson; 5 mi. NW of Jackson (DOR); 

 Rock Run, Liberty Twp. (OSM 414.1). Jefferson County: New Somerset, Toronto 

 (OSM 271.2). Licking County: Flint Ridge, Hopewell Twp. (OSM 184.1). Mon- 

 roe County: Near Cameron (CM 8409); 3 mi. W of Woodsfield (TZS 2045). 

 Muskingum County: Blue Rock Twp. (OSM 465-6); Salt Creek Twp.; Washing- 

 ton Twp.: Zanesville (OSM 472). Noble County: 2 mi. N of Caldwell (DOR). 

 Pike County: Greenbriar Ridge, Benton Twp. (TZS 570); 2 mi. S of Jasper (TZS 

 1822). Ross County: 21/2 mi. S of Chillicothe (DOR); Paxton Twp. (OSM 413). 

 Scioto County: 2 mi. S of Henley (TZS 1908-9); Nile Twp. (OSM 438.1); 8 mi. 

 SW of Otway (TZS 1651); Roosevelt Game Preserve, Nile Twp. (OSM 240.1); 

 Rush Twp. (OSM 379). Tuscarawas County: Dover (TZS 2285, 2295). Vinton 

 County: 3 mi. W of Allensville (DOR); 3 mi. S of Dundas (DOR). Washington 

 County: Marietta (MC; TZS 807-9; USNM 4439); Newport Twp. (TZS 487). 



Specimens reported in the literature from Lancaster, Fairfield County, and 

 London, Madison County, by Smith (1882) and Delaware County and Salt 

 Creek by Yarrow (1882) appear to be no longer in existence and hence it 

 cannot be determined whether they were identifiable as C. c. constrictor, C. c. 

 flaviventris or intergrades between these two. 



Intergrades. — Racers from a relatively narrow area extending in a diagonal 

 direction across Ohio from Butler, Clermont and Highland Counties in the 

 southwest, to Cuyahoga and Geauga Counties in the northeast (Map 11) 

 cannot be definitely assigned to either Coluber constrictor constrictor or Colu- 

 ber constrictor flaviventris. Such specimens are intergrades between these two 

 subspecies. 



Adult racers, typical of the two respective forms, show four major differ- 

 ences as are indicated in the following table: 



Table 3 

 Characteristics of Adult Racers 



Coluber c. constrictor Coluber c. flaviventris 



1. Upper surface uniform black 1. Upper surface uniform bluish black or 



deep olive to light greenish or bluish 



srev. 



Many specimens from the intergrading area show various combinations of 

 these characters. For example, one from western Hocking County is oliva- 

 ceous black above and yellowish green below, but the chin and throat are 



