

Contents-continued 



SWARTZ, STEVEN L. Cleaning symbiosis between topsmelt, Atherinops affinis, 

 and gray whale, Eschrichtius robustus, in Laguna San Ignacio, Baja California Sur, 

 Mexico 360 



RADTKE, RICHARD L., and J. M. DEAN. Morphological features of the otoliths 

 of the sailfish, Istiophorus platypterus , useful in age determination 360 



HAYNES, JAMES M., and ROBERT H. GRAY. Diel and seasonal movements of 

 white sturgeon, Acipenser transmontanus , in the mid-Columbia River 367 



JOHNSON, JAMES H., and EMILY Z. JOHNSON. Feeding periodicity and diel 

 variation in diet composition of subyearling coho salmon, Oncorhynchus kisutch , 

 and steelhead, Salmo gairdneri, in a small stream during summer 370 



BIRD, PATRICIA M. The occurrence of Cirolana borealis (Isopoda) in the hearts 

 of sharks from Atlantic coastal waters of Florida 376 



GRUSSENDORF, MARK JAMES. A flushing-coring device for collecting deep- 

 burrowing infaunal bivalves in intertidal sand 383 



Vol. 79, No. 1 was published on 8 July 1981. 



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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