Contents-continued 



Notes 



PERRIN, WILLIAM F., RUTH B. MILLER, and PRISCILLA A. SLOAN. Reproduc- 

 tive parameters of the offshore spotted dolphin, a geographical form of Stenella 

 attenuata, in the eastern tropical Pacific, 1973-75 629 



KORN, SID, NINA HIRSCH, and JEANNETTE W. STRUHSAKER. The uptake, 

 distribution, and depuration of 14 C benzene and 14 C toluene in Pacific herring, 

 Clupea harengus pallasi 633 



FOLTZ, JEFFREY W., and CARROLL R. NORDEN. Food habits and feeding chro- 

 nology of rainbow smelt, Osmerus mordax, in Lake Michigan 637 



LOESCH, JOSEPH G. Useable meat yields in the Virginia surf clam fishery 640 



HALL, ALICE S., FUAD M. TEENY, and ERICH J. GAUGLITZ, JR. Mercury 

 in fish and shellfish of the northeast Pacific. III. Spiny dogfish, Squalus acanthias . 642 



PEARSE, JOHN S., DANIEL P. COSTA, MARC B. YELLIN, and CATHERINE R. 

 AGEGIAN. Localized mass mortality of red sea urchin, Strongylocentrotus fran- 

 ciscanus, near Santa Cruz, California 645 



RENSEL, JOHN E., and EARL F. PRENTICE. First record of a second mating 

 and spawning of the spot prawn, Pandalus platyceros, in captivity 648 



DIZON, ANDREW E. Effect of dissolved oxygen concentration and salinity on 

 swimming speed of two species of tunas 649 



HALL, JOHN D. A nonlethal lavage device for sampling stomach contents of small 

 marine mammals 653 



Vol. 75, No. 2 was published on 13 June 1977. 



The National Marine Fisheries Service (NMFS) does not approve, rec- 

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 mentioned in this publication. No reference shall be made to NMFS, or 

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 or endorses any proprietary product or proprietary material mentioned 

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