Contents— ConHntted 



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

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

 and two new species, Mikrocytos mackini (sp. n.) and Mikroaytos rcmghleyi (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, Plac&pecten 

 magellanicus 597 



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

 of prawns, Pandalus 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 



• GPO 791-008 



