The Surf-Fishes 



The genus Hysterocarpus contains but one species, H. traski, 

 a small freshwater fish, locally abundant in the rivers of centra.' 





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California. It is probably most numerous in the Sacramento. 



The genus Abeona contains 2 species, A. minima, reaching 

 6 inches in length and found along the entire California coast 



from San Francisco to San Diego. The other species, A. aurora, 

 is scarcely larger and is known only from Monterey Bay, where 

 it is abundant. 



