310 CALIFORNIA MAMMALS 



Species. An assemblage of related individuals agreeing in certain characters 

 but differing distinctly in one or more characters (usually of 

 minor importance) from all other individuals of the same con- 

 dition. 



Subspecies. A form connected by other forms of the species by intermediate 

 individuals ; a variety ; a nascent species ; a geographical race. 



Subterranean. Under the surface of the earth ; underground. 



Synonym. A duplicate name discarded for a prior name, or one more ap- 

 plicable. 



Tarsus. The shank bone; the bones between the toes and the heel. 



Taxidermist. One who prepares skins to imitate the form of living animals. 



Taxonomy. The science of classification. 



Terrestrial. On the surface of the ground. 



Tibia. The larger bone below the knee. 



Tragus. The inner lobe of the ear. 



Type. Of a species, that specimen used as a base of the description of the 

 species in the original description ; of a genus, that species from 

 which the generic characters were taken. 



Ulna. The back one of the two bones of the forearm ; that one on which the 

 elbow hinges. 



Vertebrate. Having a spinal column or backbone. 



Zoology. The natural history of animals in general. 



Errata 



Page 22, next to bottom line, for havits read habits. 



40. Tenth line from top, for chisely. read closely. 



116. Third line from bottom, for marcotis read macrotis. 



162. For Panamint Pocket-Rat, read Panamint Pocket-Mouse. 



114. For Subgenus Ncotojne read Tcoiiioiiui. 



195. Head, for Fer?e read heporid^. 



241. Head, for Mustedidse, read Mustelidse. 



