760 13. COLUBRIDJE 



east of Fort Yuma, in Imperial County ; and near Coachella, 

 Riverside County. 



In Lower California, the only record is Volcano Lake. 



In Sonora, it has been taken at San Domingo. 



170. Lampropeltis getulus conjuncta (Cope) 

 SAN LUCAN MILK SNAKE 



Lampropeltis boylii COPE, Proc. Acad. Nat. Sci. Phila., 1860, p. 255. 

 Lampropeltis boylii conjuncta COPE, Proc. Acad. Nat. Sci. Phila., 1861, 



pp. 301, 305 (part) (type locality, Cape St. Lucas); Me LAIN, 



Contr. Neotrop. Herpet., 1899, p. 5; STEJNEGER & BARBOUR, Check 



List N. Amer. Amph. Kept., 1917, p. 87 (part). 

 Ophibolus getulus conjunctus COPE, Bull. U. S. Nat. Mus., No. I, 1875, 



pp. 37, 92; YARROW & HENSHAW, Ann. Rep. Chief of Engineers for 



1878, Surv. W. looth Merid., Appendix NN, 1878, p. 212; COPE, 



Bull. U. S. Nat. Mus., No. 32, 1887, p. 78. 

 Ophibolus getulus boylii YARROW, Bull. U. S. Nat. Mus., No. 24, 1883, 



p. 92 (part); BELDING, West Amer. Scientist, Vol. Ill, No. 24, 1887, 



p. 98; COPE, Report U. S. Nat. Mus. for 1898, 1900, p. 919 (part); 



Terron, Mem. y Rev. Soc. Cient. Antonio Alzate, Vol. 39, 1921, 



pp. 165, 171. 

 Lampropeltis conjuncta VAN DENBURGH, Proc. Cal. Acad. Sci., Ser. 2, 



Vol. 5, 1895, p. 142. 



Lampropeltis getulus conjuncta BLANCHARD, Occas. Papers Mus. Zool. 

 fniv. Michigan, No. 70, 1919, pp. 6, 10; BLANCHARD, Occas. Papers 



Mus. Zool. Univ. Michigan, No. 87, 1920, pp. 4, -; VAN DENBURGH 



& SLEVIN, Proc. Cal. Acad. Sci., Ser. 4, Vol. XI, 1921, pp. 52, 68; 



NELSON, Mem. Nat. Acad. Sci., Vol. XIV, 1921, pp. 114, 115; 



BLANCHARD, Bull. U. S. Nat. Mus., No. 114, 1921, p. 89, fig. 21. 



Description. Similar to L. g. boylti. Top of head 

 slightly flattened posteriorly, curving downward to the 

 broad, rounded snout. Temporal regions rarely if ever 

 swollen. Rostral plate large, little broader than high, hol- 

 lowed below, and bounded behind by internasal, anterior 

 nasal, and first labial plates. Plates on top of head are a 

 pair of internasals, a pair of prefrontals, a short, broad 

 frontal, supraocular of each side, and a pair of large parie- 



