DESCRIPTIONS OF SUPPOSED NEW MAMMALS. 27 



almost exactly with some of my specimens collected near 

 San Francisco; but heecheyi varies greatly in the distinct- 

 ness of its gray shoulder stripes, as yoa must have observed 

 if you have any sort of series." 



Measurements taken from fresh specimens, also cranial 

 dimensions, will be given in a later paper. 



Subsp. char. — Similar in color to S. grammiirus, but 

 having top of head, black; neck, scapulars and interscapu- 

 lars, black, blending with anterior dorsal region and sides; 

 dark area, exclusive of crown, mottled or sprinkled with 

 gray. Orbital ring, white. 



Habitat. — Central and southern portions of Lower Cali- 

 fornia; (Northern Mexico?). 



