CHECKLIST OF REPTILES OF MEXICO 111 



13. Belly patches in males continuous across chest; prefrontals never in contact; no 



dorsolateral light lines in males; posterior surface of thigh mottled or with 



a broad light line, dark-bordered 14 



Belly patches small, confined to sides of belly in males; prefrontals usually in 

 contact; dorsolateral light lines present in males; posterior surface of thigh 

 nearly immaculate or with a narrow, short black line near insertion of hind 

 leg olivaceus (p. 117) 



14. Gular region barred 15 



Gular region not barred 16 



15. Femoral pores 13 or more (one side) orcutti licki (p. 114) 



Femoral pores 12 or less (one side) spinosus spinosus (p. 116) 



16. Femoral pores (one side) 12 or less 17 



Femoral pores (one side) 13 or more 21 



17. Outer row of labiomental scales in contact with mental. 



magister magister (p. 114) 

 Outer row of labiomental scales separated from mental 18 



18. First canthal in contact with lorilabials orcutti orcutti (p. 114) 



First canthal separated from lorilabials 19 



19. Lateral scales about one-half size of dorsal scales; median frontonasal not in 



contact with frontal; lateral belly patches in males not passing over 



chest 21 



Lateral scales considerably more than one-half size of dorsal scales; median 

 frontonasal usually in contact with frontal; lateral belly patches in males 

 passing over chest 20 



20. Dorsal markings absent or very dimly visible; a broad, light line on posterior 



surface of thighs lundelli gaigeae (p. 112) 



Dorsal markings present and distinct at least in females, consisting of narrow, 

 dark cross bars; posterior surface of thigh mottled. 



lundelli lundelli (p. 112) 



21. Femoral pores (one side) 10 or less 22 



Femoral pores (one side) 1 1 or more 23 



22. First canthal rarely in contact with lorilabials; gular region never barred; 



outer row of labiomentals rarely in contact with mental. 



clarkii boulengeri (p. 113) 

 First canthal usually in contact with lorilabials; gular region barred, or outer 

 row of labiomentals sometimes in contact with mental (not in o. orcut- 

 ti) 23 



23. First canthal separated from labiomentals; femoral pores 16 or less; lower fore- 



legs distinctly barred; gular region never barred clarkii clarkii (p. 113) 



First canthal in contact with lorilabials, lower forelegs not barred dis- 

 tinctly 24 



24. Outer row of labiomentals in contact with mental; gular region not barred; 



shoulder patch distinct 26 



Outer row of labiomental scales separated from mental; gular region barred or 

 shoulder patch indistinct 25 



25. Dorsal scales 32 to 40; femoral pores 13-19; usually one or more scales in con- 



tact with both subocular and supralabials; a distinct, light-bordered black 

 shoulder patch; dorsolateral light lines present, indistinct posteriorly, the 



medial edge sometimes indistinct orcutti licki (p. 114) 



Dorsal scales 28 to 36; femoral pores 10-15; usually 2 complete rows of lorila- 

 bials below subocular; shoulder patch indistinct; no dorsolateral light 

 lines orcutti orcutti (p. 114) 



