Contents— ConiiriMed 



FARLEY, C. AUSTIN, PETER H. WOLF, and RALPH A. ELSTON. A long-term study 

 of "microcell" disease in oysters witii a description of a new genus, Mikrocytos (g. n.), 

 and two new species, Mikrocytos mackini (sp. n.) and Mikroq^tos roughleyi (sp. n.) . 581 



Notes 



WILLIAMS, AUSTIN B. Cojoined twin adult shrimp (Decapoda: Penaeidae) 595 



GOULD, EDITH, DIANE RUSANOWSKY, and DONNA A. LUEDKE. Note on 

 muscle glycogen as an indicator of spawning potential in the sea scallop, Placopecten 

 magellanixrus 597 



JAMIESON, GLEN S, and ELLEN K PIKITCH. Vertical distribution and mass mortality 

 of prawns, Pandalvs platyceros, in Saanich Inlet, British Columbia 601 



YANG, MEI-SUN. Morphological differences between two congeneric species of pleuro- 

 nectid flatfishes: Arrowtooth flounder, Atheresthes stomias, and Kamchatka flounder, 

 A. evermanni 608 



McINTYRE, JOHN D, REGINALD R. REISENBICHLER, JOHN M. EMLEN, RICHARD 

 L. WILMOT, and JAMES E. FINN. Predation of Karluk River sockeye salmon by coho 

 salmon and char 611 



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