88. CORONELDA. 201 
Total length 760 millim.; tail 120. 
North America east of the Mississippi. 
A. A light V- or Y-shaped marking on the occiput. (C. traangulum.) 
a. & (V. 207; C. 50). Canada. Chatham Mus. 
b-c. 2 (V.198; C.52) & Bloomington, Indiana. C.H. Bollman, Esq. 
yg. (V. 196; C. 48). [C.1. 
d-e. Her. (V.197; C.46) New York. Mr. J. Murray [P.]. 
& yg. (V. 190; C. 47). c 
fa es (V. 206; ©. 58). N. America. E. Doubleday, Esq. 
(eS I: 
g,h,t,k. 3 (V.195; C. N. America. ae 
49), 9 (V.193; ©. 49), 
her. (V. 202; C. 51), & 
yg. (V. 202; C. 51). 
B. A light transverse collar behind the parietals. 
(Var. collaris, Cope.) 
a. Hgr. (V. 195; C. 45). N. America. G. Henshaw, Esq. 
B) 
Pat 
b. Her. (V. 198; C. 46). N. America. Dr. Jacob Green [ P. ]. 
¢. Her. (V. 189; €. 51). N. America. 
This variety connects C. triangulum with C. gentilis and C. doliata. 
11. Coronella gentilis. 
Ophibolus doliatus, Baird § Gir. Cat. N. Am. Rept. p. 89 (1853) ; 
Dugeés, La Naturaleza, iii. 1875, p. 222, pl. — (?); Cope, Proc. 
U.S. Nat. Mus. xiv. 1892, p. 608. 
gentilis, Baird § Gir. l. c. p. 90, and Marcy’s Explor. Red Riv. 
p- 229, pl. viii. (1853). 
Coronella doliata, part., Dum. & Bibr. vii. p. 621 (1854) ; Giinth. Cat. 
p. 41 (1858). 
doliata, Hallow. Proc. Ac. Philad. 1856, p. 247; Wied, N. 
Acta Ac, Leop-Carol. xxxii. i. 1865, p. 99. 
Lampropeltis doliata, Cope, Proc. Ac. Philad. 1860, p. 256. 
annulata, Cope, 1. c. p. 257. 
multistriata, Kennicott, Proc. Ac. Philad. 1860, p. 828; 
Stejneger, Proc. U.S. Nat. Mus. xiv. 1891, p. 502. 
annulata, part., Kenicott, 1. e. p. 529. 
Coronella doliata, var. gentilis, Jan, Arch. Zool. Anat. Phys. ii. 
1863, p. 241, and Icon. Gén. 17, pl.i. fig. 2 (1866); Bocourt, Miss. 
Se. Mex., Rept. p. 610, pl. xxxix. fig. 5 (1886). 
Ophibolus doliatus coccineus, gentilis, annulatus, ef doliatus, Cope, 
Check-lst N. Am. Rept. pp. 4, 36 (1875), and Proc. U.S. Nat. 
Mus. xi. 1888, p. 381, and Am. Nat. 1893, p. 1067, pls. xxvi. & 
XXVili. 
multistratus, Cope, Check-list, p. 37. 
triangulus, vars. mexicanus (?), doliatus, et gentilis, Garman, 
N. Am. Rept. p. 66 (1885). 
doliatus syspylus, Cope, Proc. U.S. Nat. Mus. xi, 1888, p. 383, 
and Am. Nat. 1893, p. 1067, pl. xxvii. fig. 1. 
? Coronella mexicana, Giinth. Biol. C-Am., Rept. p. 110 (1895). 
Snout slightly prominent; rostral about once and a half as broad 
as deep, the portion visible from above measuring about one third 
