34-. LAMPROPELTIS 



distinct. One (rarely two) preocular and two (rarely one or 

 three) postoculars are present, as is also a small loreal plate. 

 Temporals are normally 2+3, rarely 1+2, 1+3, 2+2, 

 2+4, or 3+4. The scales are smooth, in 21 or 23 (or 24) 

 rows, each with two apical pits. The anal plate is undivided, 

 but the urosteges are in two series. The eye is of moderate 

 size, with round pupil. 



Synopsis of Species 



a. — Some red in coloration, 

 b. — Urosteges not more than 61 (41 to 61); snout not 

 entirely whitish. 

 c. — Whitish cross-bands on body and tail usually fewer 

 than 30, (25 to 40); snout entirely blackish, or yel- 

 lowish at sides; gastrosteges 176 to 212. Utah and 

 eastern Arizona. 



L. triangulum gentilis. — p. 743. 

 c'. — Whitish cross-bands on body and tail usually more 

 than 30 (23 to 57; snout blackish; gastrosteges 198 

 to 222. California. 



L. zonata. — p. 748. 

 b°. — Urosteges not fewer than 61 (61 to 79); snout en- 

 tirely whitish; gastrosteges 216 to 235. Arizona. 

 L. pyromelana. — p. 746. 

 a'. — No red in coloration; white and black or brown, 

 bb. — Color in transverse blotches or rings; no longitudinal 

 markings, 

 cc. — Dark areas uniformly black or brown to gastrosteges, 

 without light markings on lateral scales, 

 d. — Scales of white rings usually without dark edges. 



L. getulus boylii. — p. 752. 

 d'. — Scales of white rings edged with black or brown 

 (except in young). 



