224 THE AMERICAN MIDLAND NATURALIST 



3P6.42). Jefferson Twp. (DPLM 221.42. 223.42); Northridge, Harrison Twp. 

 (Wood and Duellman, 1947b); Van Buren Twp. (DPLM— 2 specs.; WED 53); 

 Washington Twp. (DPLM 222.42). Pike County: Pike State Forest (DPLM 

 629.44, 669.44; WED 48. 50). Preble County: Camp Myron Kahn. 2 mi. S of 

 Camden (MU 8). Ross County: Vi mi. S of Adelphi (WED 2C4) ; Potts Hill, 

 Paxton Twp. (OSM 908). Warren County: I mi. W of Waynesville (WED 52). 



One of the specimens from Wilmington, Clinton County (UC 2 — a large 



male) has an undivided anal plate. 



As is commonly the case when two forms are known to intergrade, indi- 

 viduals found well within the range of one race may show characteristics of 

 the other race. I have already mentioned two specimens of flaviventris with 

 high subcaudal counts (page 54, footnote) . Two or three quite dark racers 

 have been collected in northwestern Ohio, and a few rather bluish specimens 

 have turned up in the eastern and southeastern counties. In many cases, how- 

 ever, not too much reliance can be placed upon color, for methods of preserva- 

 tion vary and fading often occurs. Likewise, living individuals exhibit changes; 

 snakes preparing to shed are apt to be of a lighter coloration than usual. Only 

 those racers that have recently passed through ecdysis may be said to exhibit 

 diagnostic hues. 



Coluber constrictor flaviventris Say 

 Blue Racer 



(Page 54; maps 11 and 48; plate 6. fig. 3) 



Racers from extreme southern Texas are characterized by (a) the consis- 

 tently greenish coloration of the adults and (b) by the fact that the markings 

 of the young consist chiefly of small dark spots which, on the anterior part of 

 the body, fuse sufficiently to suggest narrow dark crossbars. Snakes of this 

 population are now designated as Coluber constrictor stejnegerianus (Cope) 

 and the general range map (page 50) should be altered to make allowance for 

 them. Attention also should be called to an interesting population of racers 

 that occu-s from western Louisiana into Texas and Arkansas. Snakes from this 

 region are irregularly marked with prominent white or yellow spots; the name 

 Coluber constrictor anthicus (Cope) is available for them. 



New records for blue racers in Ohio are: 



Defiance County: Sec. 35, Defiance Twp. (OSM 819). Hardin County: 

 (TMS 2467-8) ; 1 mi. E of Mt. Victory (OSM 753) ; 3 mi. E of Mt. Victory (OSM 

 559). Logan Counts': East side of Indian Lake (WED 49); south side of Indian 

 Lake (Duellman, 1947). Lucas CountY: (TMS 2474); Sylvania (OSM 446). 

 Miami County: V/i mi. S of West Milton (DPLM 6.43). Paulding County: 5 

 mi. NE of Antwerp (OSM 684). Preble County: Eaten (DPLM 195.42). 



Considerable comment upon flaviventris and its intergradation with con- 

 strictor has been made under the heading of the black racer (p. 222, et seq.) . 



Elaphe obsoleta obsoleta (Say) 

 Pilot Black Snake 



(Page 55; maps 12 and 49; plate 7, fig. 2 and plate 8, fig. 1) 



New records for this species are as follows: 



Athens County: (OUVC 349-50, 1264); 1 mi. E of Athens (OUVC 2238); 

 3 mi. SW of Athens (OUVC 1276); The Plains (OUVC 1330). Butler County : 



