88. CORONKI.I.V. 201 



Total length 700 millim. ; tail 120. 

 i America east of the Mississippi. 



A . A light V- or Y-shaped marking on the occiput. (C. tnangulum.) 



a. rf (V. L'07 : C. 50). Canada. Chatham Mus. 



b-c. $ (V. li>8; C. 52) & lUoomington, Indiana, 0. II. Bollman, Esq. 



V. I'.KJ; C. 43). [CJ. 



I LT. (V. 197 ; C. 46) New York. Mr. J. Murray [P.]. 



\.N.MV.190; C.47). 

 /. Yg. (V. 206; C. 53). N.America. E. Doubleday, Esq. 



[P.]. 

 ff, *, i, *. (V. 195 ; C. N. America. 



. 9 (V.193; C.49), 

 hgr. (V.i'Oi'; C.51),& 

 yg. (V.202; C.51). 



B. A light transverse collar hehind the parietals. 

 (Var. collaris, Cope.) 



a. Hgr. (V. 195 ; C. 45). N. America. G. Henshaw, Esq. 



l>. Utrr. (V. 198 ; C. 46). N. America. Dr. Jacob Green [P.]. 



..II -r. ( V. 189 ; C. 51). N. America. 



This variety connects C. triangulum with C. gentilis and C. doliata. 



11. Coronella gentilis. 



< >phibolus doliatus, Baird $ Gir. Cat. N. Am. Rept. p. 89 (1853) ;' 



Ihn/i'A, La yatttra/rzft. iii. 1S7">, p. 222, pi. (?) ; Cope, Proc. 



U.S. Nat. Mia. xiv. 1892, p. 608. 

 gentilis, Baird < Gir. I. c. p. 90, and Marty's Explor. Red Rio. 



p. 229, pi. viii. (1853). 

 Coronella doliata, part., Dum. % Bibr. vii. p. 621 (1854) ; Gunth. Cat. 



p. 41 (1868). 



- doliata, Hallow. Proc. Ac. Philad. 1856, p. 247; Wied t N. 

 Ada Ac. Leop.-Carol. xxxii. i. 18(3o, p. 99. 



Lampropeltis doliata, Cope, Proc. Ac. Philad. I860, p. 256. 



annulata, Cope, I. c. p. 257. 



- multistriata, Kninu-ott, Proc. Ac. Pfiilad. I860, p. 328 j 

 Stejneyer, Proc. U.S. Nat. Mus. xiv. 1891, p. 502. 



annulata. part., Kennwott, I. c. p. 329. 



nella doliata, \ar. gentilis, Jan, Arch. 7,ool. Ann'. Phi/", ii. 



1863, p. 241, and lam. Gen. 17, pi. i. li-r. 2 ( isc.C) ; Booota^ 1 



8e. Mejc., Rrpt. p. 610, pi. xxxix. ii^r. ~> (1886). 

 Ojihibolus doliatus coccineus, gentilis, annulatus, et doliatus, Co/w, 



(l,Tk-li*t N. Am. Rept. pp. 4,3(5 (1875), and Proc. U.S. X,if. 



Mu*. xi. 1888, p. 381, and Am. Nat. 1893, p. 1067, pis. xxvi. & 



xxviii. 



ni 1 1 hist rat us, Cope, Check-lint, p. 37. 



triangulus, viire. mexicanus (?), doliatus, et gentilis, Gannon, 

 \. Am. Rept. p. 00 (1883). 



doliatus syspyliH, ('>,; Proc. U.S. Naf. Mus. xi. 1888, p. 383, 



and Am. Knf. 1H!C5, p. KMJ7, ]!. xxvii. fig. 1. 

 P Conini-lla mexicnna, (liinth. Iliol. ('.-Am., llrpt. p. 110 (1893). 



Snout slightly prominent ; rostral about once and a half as broad 

 as deep, the portion visible from above measuring about one third 



