SYSTEMATIC LIST AND SYNONYMY. 151 



OPHIDI A— Continued. 



Coop., I860, P. E. E. Eep., XII (2), 300; Hayden, 1862, Trans. Phil. 



Soc, 177. P. sayi, subsp. sayi Cope, 1875, Checklist, 39. P. McClel- 



lanii B. & G., 1853, Serp., 68, — 1854, Marcy's Exp., 196, pi. 5; Bd., 



1859, P. E. E. Eep., X, pi. 29, f. 47. 



Eocky Mountains to Illinois. 



Var. mexicanus 52 



Pityophis mexicanus D. & B., 1854, Erp., VII, 236; Jan, 1863, Sist., 59, 



— 1867, Icon., livr. 22, pi. 2, f. 1. Anasime mexicanus D. & B., 1S54, 

 Erp., Atlas, pi. 62. (?) Pityophis sayi var. mexicanus Cope, 1875, 

 Checklist, 39. (?) P. sayi subsp. mexicanus Yarr., 1875, AVheeler's 

 Eep., V, 539. (?) P. sayi mexicanus Cope, 1880, Bull. 20, U. S. Mus., 

 23. Mexico. 



Var. deppei 



Elaphis dcppci D. & B., 1854, Erp., VII, 268. Pityophis deppei Jan, 

 1863, Sist., 59, — 1867, Icon., livr. 22, pi. 2, f. 2. P. deppei var. pholi- 

 dostictus Jan, 1S63, Sist., 59. Arizona elegans (Kenn.) Bd., 1859, P. E. 

 E. Eep., X, 42, — 1859, Mex. Bound., II, pi. XIII. Pityophis elegans 

 Cope, 1875, Checklist, 39 ; Yarr., 1S75, Wheel. Eep., V, 541 , & Coues, 

 p. 618. (?) Arizona janiCope, 1860, Pr. Phil. Ac, 369. (?) Arizona 

 linealicollis Cope, 1861, Pr. Ac. Phil., 300. 



Scales in 29 to 31 rows, keels of vertebral low to obsolete. Oculars 

 1 to 2—2. Loreal narrow. Temporals 3+3 to 4. Prefrontals com- 

 monly two, sometimes four. Ventrals 235; anal entire; subcaudals 

 67 pairs. Dorsal and lateral series of blotches more or less irregular 



in shape. Head nearly uniform light. 



Arizona to Mexico. 



Var. bellona 53 



ChurchUlia bellona B. & G., 1852, Stansbury's Exp., 350. Pityophis bel- 

 lona B. & G., 1853, Serp., 66, 157 ; Gthr., 1858, Cat., 87; (Kenn.) Bd., 

 1859, P. E. E. Eep., X, 42, pi. 28, f. 46,— Mex. Bound., II, 18; 

 Cope, 1866, Pr. Ac. Phil., 305; Allen, 1874, Pr. Bost. Soc, 69. P. 

 sayi var. bellona Cope, 1875, Checklist, 39. P. sayi subsp. bellona 

 Yarr., 1875, AVheeler's Eep., V, 540, & Coues, p. 617; Coues & Yarr., 

 1878, Hayd. Eep., IV, 282. P. affinis Hall., 1852, Pr. Phil. Ac, 181, 



— 1853, Sitgr. Exp., 130, 146. 



The Utah basin. 



Elaphis 53 



Aldrovandus, 1640, Hist. Serp. Drac, 267 (re-print, 1765); Bonap., 

 1831, Saggio. Dura., 1852, Mem. Sci. Nat., XXIII, 453; D. & B., 1854, 

 Erp., VII, 243; Gthr., 1858, Cat., 92. Elaplie Fitz., 1833, Wagler's 

 . Icon., pi. 27, — 1843, Syst, 26. 



(SCOTOPHIS. ) 



Elaphis obsoletos (Black Snake) 54 



Coluber obsoletus Say, 1823, Long's Exp., I, 140 ; Harl., 1827, Jour. Phil. 

 Ac, 347, — 1835, Med. Ees., 112. Scotophis obsoletus Kenn., 1860, Pr. 

 Phil. Ac, 330. Coluber obsoletus subsp. obsoletus Cope, 1875, Checklist, 

 39. Elaphis spiloides D. &B., 1854, Erp., VII. 269; Gthr., 1858, Cat., 

 90. Mississippi Valley. 



