33. PITUOPHIS 707 
dd*—The sum of the number of caudal blotches and 
preoculars of both sides of head rarely exceeds 
16; usually one preocular; posterior dorsal 
blotches often distinctly reddish or red-brown. 
P. c. rutilus.—p. 733. 
a.—Coloration on anterior half of body largely red. 
Gastrosteges 233 to 257; scales usually in 35 or 33 
rows; dorsal blotches few (average 44 on body, 11 
on tail); supralabials usually nine or more. 
P. vertebralis.—p. 737. 
158. Pituophis catenifer catenifer (Blainville) 
Coast GoPpHER SNAKE 
Plate 74 
Coluber catenifer Buatnvitte, Nouv. Ann. Mus. Hist. Nat., Vol. IV, 
1835, p. 290, pl. 26, figs. 2-2b (type locality, California); Bov- 
LENGER, Cat. Snakes Brit. Mus., Vol. II, 1894, p. 67 (part). 
Pituophis catenifer Barrpv & Girarp, Cat. N. Amer. Rept., Pt. I, Serp., 
1853, p. 69; Grrarp, U. S. Explor. Exped., Herp., 1858, p. 135, 
pl. VIII, figs. 1-7; Ginruer, Cat. Colub. Snakes Brit. Mus., 1858, 
p- 87; Van Densurcu, Occas. Papers Cal. Acad. Sci., V, 1897, 
p- 195 (part); Van Densurcu, Proc. Amer. Philos. Soc., Vol. 
XXXVII, No. 157, p. 140; McLary, Critical Notes, 1899, p. 11; 
Dirmars, Reptile Book, 1907, p. 320, pl. XCIX, fig. 2 (part); 
Van Densureu, Proc. Cal. Acad. Sci., Ser. 4, Vol. III, 1912, p. 
158 (part); Van Densurcu & SteEvin, Proc. Cal. Acad. Sci., Ser. 
4, Vol. IV, 1914, p. 136; Storer, Copeia, 1916, No. 35, p. 74- 
Pituophis Wilkesii Barrv & Girarp, Cat. N. Amer. Rept., Pt. I, Serpo 
1853, p. 71 (type locality, Puget Sound, Oregon); Grraro, U. S. 
Explor. Exped., 1858, p. 137, pl. UX, figs. 1-7; Lorp, Naturalist 
Vancouver Island, Vol. II, 1866, p. 307 (part). 
Pityophis catenifer Cope, Bull. U. S. Nat. Mus., No. 1, 1875, p. 393 
Corr, Proc. U. S. Nat. Mus., Vol. XIV, 1892, p. 641 (part); Cope, 
Report U. S. Nat. Mus., for 1898, 1900, p. 876 (part). 
Pityophis sayi sayi YARRow, Bull. U. S. Nat. Mus., No. 24, 1883, p. 105 
(part). 
