33. PITUOPHIS 719 
160. Pituophis catenifer annectens (Baird & Girard) 
San DiecaANn GoPpHER SNAKE 
Plate 76 
Pituophis annectens Barrp & Girarp, Cat. N. Amer. Rept., Pt. I, 1853, 
p- 72 (type locality, San Diego, California). 
Pityophts sayi sayi Yarrow, Bull. U. S. Nat. Mus., No. 24, 1883, p. 
105 (part). 
Pityophis sayi bellona Streets, Bull. U. S. Nat. Mus., No. 7, 1877, 
p- 40; Yarrow, Bull. U. S. Nat. Mus., No. 24, 1883, p. 106 (part); 
Cope, Report U. S. Nat. Mus., for 1898, 1900, p. 872 (part). 
Pityophis catenifer Cope, Proc. Acad. Nat. Sci. Phila., 1883, p. 29; Cope, 
Report U. S. Nat. Mus., for 1898, 1900, p. 876 (part). 
Pituophis catenifer Van DenpurGH, Occas. Papers Cal. Acad. Sci., V, 
1897, p. 195 (part); GrinneLtt & GrinneLt, Throop Inst. Bull., 
No. XXXV, 1907, p. 46, fig. 20; GRINNELL, Univ. Cal. Publ. Zool. 
Vol. 5, No. 1, 1908, p. 165; Van Densurcu, Proc. Cal. Acad. 
Sci., Ser. 4, Vol. III, 1912, pp. 149, 150; Arsatr, Univ. Cal. Publ. 
Zool., Vol. 12, No. 3, 1913, p. 43; VAN DenBurcH & SLevin, Proc. 
Cal. Acad. Sci., Ser. 4, Vol. IV, 1914, p. 141; RurHLinc, Copeia, 
1916, No. 37, p. 91; STEPHENS, Trans. San Diego Soc. Nat. Hist., 
Vol. III, No. 4, 1921, p. 64. 
Pituophis catenifer deserticola Van DenBuRGH & S tevin, Proc. Cal. 
Acad. Sci., Ser. 4, Vol. IV, 1914, p. 142. 
Pituophis catenifer catenifer GRINNELL & Camp, Univ. Cal. Publ., Zool., 
Vol. 17, No. 10, 1917, p. 193 (part); CowLes, Journ. Entomol. & 
Zool., Pomona College, Vol. XII, No. 3, 1920, p. 66. 
Pituophis catenifer annectens VAN DENBURGH & SLEVIN, Proc. Cal. Acad. 
Sci., Ser. 4, Vol. IX, 1919, p. 216 (part); Van Densurcu, Proc. 
Cal. Acad. Sci., Ser. 4, Vol. X, No. 1, 1920, p. 17, pl. 1, fig. 2; VAN 
DensurcH & Stevin, Proc. Cal. Acad. Sci., Ser. 4, Vol. XI, 1921, 
pp- 52, 67; Netson, Mem. Nat. Acad. Sci., Vol. XVI, 1921, pp. 
114, 130. 
Description—Head somewhat flat-topped, with snout 
projecting and rather narrow. Temporal regions not swol- 
len. Rostral plate very large, prominent, not very narrow, 
often recurved between internasals on top of snout; bounded 
behind by internasal, anterior nasal, and first labial plates. 
Plates on top of head are a pair of internasals, a variable 
