50 



CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



List of species from Cowlitz Phase. — (Cent.) 



COMPARISON OF COWLITZ AND TYPE TEJON 



FAUNAS 



The close connection between the CowHtz phase of the 

 Washington Tejon and the fauna of the type Tejon is easily 

 seen when the table of the Cowlitz fauna is studied. (See list 

 above.) About 55 of a total of 95 species listed from W^ash- 

 ington are found in the fauna of the type Tejon. Of the re- 

 mainder, three are not specifically determined, and about 20 

 are represented by only one or two individuals. Such char- 

 acteristic and most abundant species as Acila gabbiana, Bar- 

 batia morsel, Corbula hornii, Crassatellites grandis, Cardium 



