632 Bulletin American Museum of Natural History [Vol. XLVI 



6. Subcaudal scales usually undivided Rhinocheilus. 



Subcaudal scales in two rows 7.. 



7. Dorsal scales 27-31 Arizona. 



Dorsal scales less than 27 „ Lampropeltis. 



8. Loreal absent 9. 



Loreal present 10. 



9. Nasal fused with the frontonasal plate Chilo meniscus. 



Nasal not fused with the frontonasal Tantilla. 



10. Two loreals Trimorphodon. 



A single loreal 11- 



11. Rostral projecting, its lateral edges free; color pattern of longitudinal bands. 



Salvadora. 

 Rostral not projecting; coloration various 12. 



12. Dorsal scales in 15 rows Sonera. 



Dorsal scales in more than 15 rows 13. 



13. Pupil vertical Hypsiglena . 



Pupil round 14. 



14. Dorsal scales in 17-19 rows Coluber. 



Dorsal scales in about 33 rows Elaphe. 



DISTRIBUTIONAL LIST OF THE AMPHIBIANS AND LAND REPTILES OF 



LOWER CALIFORNIA AND THE NEIGHBORING ISLANDS, WITH 



NOTES ON THE SPECIES CONTAINED IN THE COLLECTION 



MADE BY THE 'ALBATROSS' IN 1911 



Amphibia 

 Caudata 

 Batrachoseps attenuatus (Eschscholtz) 

 Salamandrina attenuata Eschscholtz, 1833, p. 1, PI. xxn, figs. 1-4. 

 Batrachoseps attenuatus Stejneger and Barbour, 1917, p. 13. 

 Range. — S. W. Oregon, California, and Lower California. 

 Lower Californian Records. — La Paz, Lockington, 1880, p. 295; San Pedro 

 Martir Mts., Van Denburgh, 1895a, p. 560. 



Batrachoseps leucopus Dunn 



Batrachoseps leucopus Dunn, 1922, Copeia, No. 109, p. 60. 

 Range. — Coronados Islands, Lower California. 



Plethodon croceater Cope 



Plethodon croceater Cope, 1867, p. 210; Stejneger and Barbour, 1917, p. 14. 



Range. — Lower California and California north to El Dorado County. 



Lower Californian Records. — "75 miles S. E. of San Diego," Lockington, 

 1880, p. 295; Cape St. Lucas, Cope, 1889, p. 150. (Occurrence doubtful in the Cape 

 district.) 



