152 SYSTEMATIC LIST AND SYNONYMY. 



O P H I D I A— Continued. 



Var. ai/leghaniensis (Black Pilot Snake) 54 



Coluber alleghaniensis Holbr., 1842, Herp., Ill, pi. 19. Scotophis allegha- 

 niensis B. & G., 1853, Serp., 73; (Kenn.) Bd., 1859, P. R. R. Eep., N, 

 pi. '29, f. 49. Elaphis alleghaniemis Hall., 1856, Pr. Phil. Ac, 243; ' 

 Mart., 1856, Mus. Berl., 27; Jan, 1863, Sist, 62, — 1867, Icon., livr. 

 24, pi. 2, f. 1-2; Allen, 1869, Pr. Bost. Soc, 181. E. Holbrookii D. & 

 B., 1854, Erp., VII, 272. E. rubriceps D. & B., 1854, Erp., VII, 270. 

 E. alleghaniensis vars. rubriceps & holbrookii Jan, 1S63, Sist., 62. Sco- 

 tophis confinis B. & G., 1853, Serp., 76; Bd., 1859, P. R. R. Rep., X, pi. 

 30, f. 52. 



New England to Alabama. 



Var. LINDHEIMERII 54 



Scotophis lindlieimerii B. & G., 1853, Serp., 74; Bd., 1859, P. R. R. Rep., 

 X, pi. 29, f. 50. Coluber lindlieimerii Cope, 1875, Checklist, 39, — 

 18S0, Bull. 20, U. S. Mus., 23. Scotophis rhinomegas Cope, 1860, Pr. 

 Phil. Ac, 255. S. lactus B. & G., 1853, Serp., 77, — 1854, Marcy's 

 Exp., 198, pi. 6; Bd., 1859, P. R. R. Rep., X, pi. 30, f. 53. S. calligas- 

 ter Kenn., 1859, Pr. Phil. Ac, 98. Elaphis guttatus var. cattigaster Jan, 

 1863, Sist., 62, — 1867, Icon., livr. 21, pi. 6, f. 2. E. guttatus var. 

 rhinomegas Jan, 1863, Sist, 62. Scotophis emoryi B. & G., 1853, Serp., 

 157; (Kenn.) Bd., 1859, P. R. R. Rep., X, 42, pi. 30, f. 56. Coluber 

 emoryi Cope, 1880, Bull. 20, U. S. Mus., 23. 



Illinois to Texas. 



Var. bairdii 



Coluber bairdi (Yarrow) Cope, 1880, Bull. U. S. Nat. Mus., p. 41. 



Vertical plate longer than broad, with a slight notch in anterior 

 border ; posterior portion very large, broader than long. Nine upper 

 labials, seventh largest. Lower labials twelve, seventh largest. Dorsal 

 rows of scales 27, long and lozenge-shaped ; three upper dorsal rows 

 slightly carinated. General color above (alcoholic) warm grayish-ash; 

 beneath yellowish; behind occipitals two converging oblong brown 

 blotches, and posterior to these a series of narrow transverse brown 

 blotches, eighty in number, becoming obsolete near caudal extremity; 

 these blotches are six scales in width (Yarrow). 



Fort Davis, Texas. 



Elaphis gpttatus (Corn Snake) 55 



Coluber guttatus Linn., 1766, Syst, I, 385; Daub., 1771, Encycl. Meth., 

 602; Gmel., 1788, # Syst. Linn., T, 1110; Schleg., 1837, Essai, I, 149, II, 

 168; Holbr., 1842, Herp., 111,65, pi. 14; Harl., 1S27, Jour. Phil. Ac, 

 363, — 1835, Med. Res., 126; Holbr., 1838, Herp., II, 109; Gthr., 

 1858, Cat., 89; Cope, 1875, Checklist, 39. C. carolinianus Shaw, 1802, 

 Zool., Ill, 460, pi. 19. C. maculatus Latr., 1802, Rept, IV, 73 ; Harl., 

 1827, Jour. Phil. Ac, 362, — 1835, Med. Res., 125. C. molossus 

 Daud., 1803, Rept, VI, 269; Harl., 1827, Jour. Phil. Ac, 363, — 

 1835, Med. Res., 126. C. floridanus Harl., 1827, Jour. Phil. Ac, 360, 

 — 1835. Med. Res., 124. C. compressus (Donnd.) Bechst., 1802, Ueb, 



