SYSTEMATIC LIST AND SYNONYMY. 151 
OPHIDI A—Continued. 
Coop., 1860, P. R. R. Rep., XII (2), 300; Hayden, 1862, Trans. Phil. 
Soc., 177. P. sayi subsp. sayi Cope, 1875, Checklist, 39. P. MeCtel- 
lanii B. & G., 1858, Serp., 68, — 1854, Marcy’s Exp., 196, pl. 5; Bd., 
1859, P. R. R. Rep., X, pl. 29, f. 47. 
Rocky Mountains to Illinois. 
oO 
bo 
War MOO SIGAINUS sett ciel “ofa (nye) ef ley i) ts) det (ee 6 tadtbla oo m0 
Pityophis mexicanus D. & B., 1854, Erp., VII, 256; Jan, 1863, Sist., 59, 
— 1867, Icon., livr. 22, pl. 2, f. 1. <Anasime mexicanus D. & B., 1854, 
Erp., Atlas, pl. 62. (?) Pityophis sayi var. mexicanus Cope, 1875, 
Checklist, 39. (2?) P. sayi subsp. mexicanus Yarr., 1875, Wheeler’s 
Rep., V, 539. (?) P. sayi mexicanus Cope, 1880, Bull. 20, U. S. Mus., 
23: Mexico. 
Vii, Dosa o 6 ooo OOM Old oD 6D A a vnen 5 on oc oo boa 
Elaphis deppet D. & B., 1854, Erp., VII, 268.  Pityophis deppet Jan, 
1863, Sist., 59, — 1867, Icon., livr. 22, pl. 2, f. 2. P. deppet var. pholi- 
dostictus Jan, 1863, Sist., 59. Arizona elegans (Kenn.) Bd., 1859, P. R. 
R. Rep., X, 42, — 1859, Mex. Bound., IJ, pl. XIII. Pityophis elegans 
Cope, 1875, Checklist, 39; Yarr., 1875, Wheel. Rep., V, 541, & Coues, 
p. 618. (2) Arizona jani Cope, 1860, Pr. Phil. Ac., 869. (?) Arizona 
lineaticollis Cope, 1861, Pr. Ac. Phil., 300. 
Seales 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 255; anal entire; subcaudals 
67 pairs. Dorsal and lateral series of blotches more or less irregular 
in shape. Head nearly uniform light. 
Arizona to Mexico. 
Who momtOnys oo 0 O90 0 oO bode GhO MORO Dna coe OLAS hat Nc CMEC sl 333) 
Churchillia 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. R. R. Rep., X, 42, pl. 28, f. 46, — Mex. Bound., IT, 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, Wheeler’s Rep., V, 540, & Coues, p. 617; Coues & Yarr., 
1878, Hayd. Rep., IV, 5s2. P. affinis Hall., 1852, Pr: Phil. Ac., 181, 
— 1853, Sitgr. Exp., 150, 146. 
The Utah basin, 
APHISEy te mciec, emcenonrpecmay is fours 6 alo -G oo He Gipadew ase om oo BEE 
Aldrovandus, 1640, Hist. Serp Drac., 267 (ye-print, 1765); Bonap., 
1831, Saggio. Dum., 1852, Mem. Sci. Nat., XXIII, 453; D. & B., 1854, 
Erp., VII, 243; Gthr., 1858, Cat., 92. Elaphe Fitz., 1833, Wagler’s 
Icon., pl. 27, — 18438, Syst., 26. 
(Scoropuis. ) 
LAPIS opsoueTus (Black Snake)... ..«.e+.s2eseereee ee O54 
Coluber obsoletus Say, 1823, Long’s Exp., I, 140; Harl., 1827, Jour. Phil. 
Ac., 347, — 1835, Med. Res., 112. Scotophis obsoletus Kenn., 1860, Pr. 
Phil. Ac., 330. Coluber obsoletus subsp. obsoletus Cope, 1875, Checklist, 
89. Elaphis spiloides D. & B., 1854, Erp., VII, 269; Gthr., 1858, Cat., 
90. Mississippi Valley. 
