774 13. COLUBRID 
except usually toward the end of the tail. The eye is of 
moderate size, with round pupil. Two species are known, 
the second being Mexican. 
176. Rhinocheilus lecontei (Baird & Girard) 
Lonc-NosED SNAKE 
Plate 84 
Rhinocheilus lecontei Bairv & Girarp, Cat. N. Amer. Rept., Pt. 1, Serp., 
1853, p. 120 (type locality, San Diego, California); Barrp, Rep. 
Pac. R. R. Surv., Vol. X, 1859, Pt. III, pl. XXIII, figs. 90; Barro, 
U. S. Mex. Bound. Surv., Vol. II, 1859, p. 21, pl. XX; Jan, Arch. 
Zool. Anat. Phys., Vol. II, 1863, p. 217; Cope, Proc. Acad. Nat. 
Sci. Phila., 1866, p. 304; Core, Bull. U. S. Nat. Mus., No. 1, 1875, 
p- 36; Jan, Icongr. génér. des Ophid., 48e livr., 1876, pl. II, fig. 1; 
Locxincton, Amer. Naturalist, 1880, p. 295; Garman, Mem. Mus. 
Compr. Zool. Cambr., Vol. VII, No. 3, 1883, p. 73; Yarrow, Bull. 
U.S. Nat. Mus., No. 24, 1883, p. 88; Bocourrt, Miss. Sci. au Mex., 
1886, p. 602, pl. XL, figs. 7-7d; Cops, Proc. U. S. Nat. Mus., Vol. 
XIV, 1892, p. 606; GinrHer, Biol. Centr.-Amer., Rept., 1893, 
p- 100; Bouencer, Cat. Snakes Brit. Mus., Vol. H, 1894, p. 212; 
Van Densurcy, Proc. Cal. Acad. Sci., Ser. 2, Vol. 5, 1895, p. 142; 
CockErELL, American Naturalist, Vol. XXX, April, 1896, p. 326; 
Van Densurcu, Proc. Cal. Acad. Sci., Ser. 2, Vol. 6, 1896, p. 346; 
Van Densurcu, Occas. Papers Cal. Acad. Sci., V, 1897, p- 1745 
figs; Corr, Report U. S. Nat. Mus. for 1898, 1900, p. 931, fig. 236; 
Brown, Proc. Acad. Nat. Sci. Phila., 1901, p. 86; STEJNEGER, Proc. 
U.S. Nat. Mus., Vol. XXV, 1902, p. 155; Brown, Proc. Acad. Nat. 
Sci. Phila., 1903, p. 551; Branson, Kansas Univ. Sci. Bull., Vol. II, 
No. 13, 1904, p. 404, fig. 26; Bartey, N. Amer. Fauna, No. 25, 1905, 
pp- 28, 47; Dirmars, Reptile Book, 1907, p. 375; STRECKER, Proc. 
Biol. Soc. Washington, Vol. XXI, 1908, p. 75; Van DensurcH, 
Proc. Cal. Acad. Sci., Ser. 4, Vol. 3, 1912, p. 154; Hurrer, First 
Ann. Rep. Laguna Marine Lab., 1912, p. 67; Van DenspurcH & 
Sevin, Proc. Cal. Sci., Ser. 4, Vol. 3, 1913, p. 413; ATsatr, Univ. 
Cal. Publ. Zool., Vol. 12, No. 3, 1913, p. 42; Ruruuinc, Copeia, 
No. 21; 1915, p. 32; StRECKER, Baylor Bulletin, Vol. XVIII, No. 4, 
1915, p. 40; GRINNELL & Camp, Univ. Cal. Publ. Zool., Vol. 17, 
No. 10, 1917, p- 188; SreyNEGER & Barsour, Check List N. Amer. 
Amph. Rept., 1917, p. 91; Cow es, Journ. Entomol. & Zool. Pomona 
College, Vol. XII, No. 3, 1920, p. 66; SrepHENs, Trans. San Diego 
