. California fish and game . OF NORTHERN CALIFORNIA.* By Will F. Thompson. In northern California there are found three species of abalone:namely, Haliotis rufescens, Swainson, the red; H. cracherodii, Leach, theblack; and H. wallalcnsis, Stearns, the northern green abalone. Earnestsearch has failed to reveal the abalone of British Columbia and Alaska,H. gigantea, Chemnitz. But one of these, the first named, is found innumbers rendering it of importance as food. It is exceedingly difficultto gauge the absolute abundance of this red abalone in any place withoutthe aid of divers apparatus. For t
. California fish and game . OF NORTHERN CALIFORNIA.* By Will F. Thompson. In northern California there are found three species of abalone:namely, Haliotis rufescens, Swainson, the red; H. cracherodii, Leach, theblack; and H. wallalcnsis, Stearns, the northern green abalone. Earnestsearch has failed to reveal the abalone of British Columbia and Alaska,H. gigantea, Chemnitz. But one of these, the first named, is found innumbers rendering it of importance as food. It is exceedingly difficultto gauge the absolute abundance of this red abalone in any place withoutthe aid of divers apparatus. For that reason it has been judged bestto give merely a record of the localities in which specimens were obtained,and a general statement as to the abundance along the various parts of ■ coast. H. cracherodii reaches its greatest abundance to the south-<.ard of San Francisco, and it is present in northern California onlyoccasionally. •California State Fisheries Laboratory, Contribution No. 17. 46 CALIFORXIA FISH AXD f% .-^i*Vv
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