254 PEROGNATHUS. 



Type locality. Mud Spring, Mojave County, Arizona. 



Geogr. Distr. Arizona and New Mexico into Mexico. Exact 

 range unknown. 



Genl. Char. Size medium; tail much longer than head and body; 

 antitragal lobe large; soles naked. 



Color. Above drab gray tinged with pale fulvous and lined with 

 black; lateral line pale fulvous; fore legs, feet and under parts white. 

 Tail above sooty brown, beneath whitish. 



Measurements. Total length, 183; tail vertebrae, 106; pencil, 18; 

 hind foot, 21; ear, 4.5. 



389. fallax. {Perognatlius), Merr., N. Am. Faun., No. i, 1899, p. 19, 



pi. Ill, fig. 14. 



Type locality. Reche Canon, southeast of Colton, San Bernar- 

 dino County, California. 



Geogr. Distr. Southwestern California, into lower California, 

 west of the San Bernardino and San Jacinto ranges. 



Genl. Char. Medium; tail crested, longer than head and body; 

 antitragal lobe higher than broad; soles naked. Bristles on rump. 



Color. Above dark grizzled yellowish brown lined with black; 

 lateral line pale fulvous, covering upper surface of fore leg; under 

 parts white. Tail above sooty brown, beneath white. 



Measurements. Total length, 177; tail vertebrae, 96; hind foot, 

 24; ear, 6. 



390. femoralis. (Terognathus), Allen, Bull. Am. Mus. Nat. Hist., 



1891, p. 281. 



Type locality. Dulzura, San Diego County, California. 



Geogr. Distr. San Diego County, southern California, into 

 lower California. 



Genl. Char. Tail much longer than head and body; size large. 



Color. Above grayish yellowish brown lined with black; lateral 

 line fulvous; fore legs, feet and under parts white; tail above rusty 

 brown, including tip, beneath white. 



Measurements. Total length, 198-241; tail vertebra;, 1 12-133; 

 hind foot, 25-27. 



391. californicus. {Perognathus), Merr., N. Am. Faun., No. i, 1889, 



p. 26. 

 armatus, Merr., N. Am. Faun., No. i, 1889, p. 27. 

 Type locality. Berkeley, California. 



Geogr. Distr. Coast region of California from San Francisco 

 Bay to Bear Valley, San Benito Valley, San Benito County. 



Genl. Char. Smaller than P. femoralis; ears large, antitragal 



