34. LAMPROPELTIS 757 
169. Lampropeltis getulus yumensis Blanchard 
Desert Mitk SNAKE 
Ophibolus boylii Barrp, U. S. Mex. Bound. Surv., Vol. II, 1859, p. 20. 
Lampropeltis boylit conjuncta Corr, Proc. Acad. Nat. Sci. Phila., 1861, 
p- 301 (part). 
Coronella getulus splendida Jan, Iconog. Génér. Ophid., livr. 12, 1865, 
pl. 6, fig. 1. 
Ophibolus getulus boylii YARRow, Surv. W. 1ooth Merid., Vol. V, 1875, 
p- 538 (part); Yarrow, Bull. U. S. Nat. Mus., No. 24, 1883, 
p- 92 (part); Cope, Report U. S. Nat. Mus. for 1898, 1900, p. 919 
(part); Brown, Proc. Acad. Nat. Sci. Phila., 1901, p. 78 (part). 
Lampropeltis conjuncta Van DenBurGH, Proc. Cal. Acad. Sci., Ser. 4, 
Vol. 3, 1912, p. 154; GrInNELL & Camp, Univ. Cal. Publs. Zool., 
Vol. 17, No. 10, 1917, p. 187; Haut & GrinneLt, Proc. Cal. Acad. 
Sci., Ser. 4, Vol. 9, No. 2, 1919, p. 48. 
Lampropeltis boylii conjuncta SreyNEGER & Barpour, Check List N. 
Amer. Amph. Rept., 1917, p. 87 (part). 
Lampropeltis getulus yumensis Buancuarp, Occas. Papers Mus. Zool. 
Univ. Michigan, No. 70, 1919, p. 6 (type locality, 27 miles west 
of Indian Oasis, Pima County, Arizona); BLancuarp, Occas. 
Papers Mus. Zool. Univ. Michigan, No. 87, 1920, pp. 4, -; VAN 
Densurcu & Stevin, Proc. Cal. Acad. Sci., Ser. 4, Vol. XI, 1921, 
P- 52; BLancuarp, Bull. U. S. Nat. Mus., No. 114, p. 66, fig. 28. 
Description—Similar to L. g. boylii. 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- 
tals. Anterior and posterior nasals distinct. Loreal a little 
longer than high. One preocular and two (rarely one) post- 
oculars. Temporals normally two followed by three, but 
may be 1+3, 2+4, or 3+4. Seven, or rarely eight, superior 
and nine, or rarely 10, inferior labials; fifth and sixth super- 
