Proceedings of the United States National Museum SMITHSONIAN INSTITUTION • WASHINGTON, D.C. Volume 125 1968 Number 3656 Copepod Crustaceans Parasitic on Fishes of Eniwetok Atoll ^ By Alan G. Lewis ^ Copepod parasites of fishes of Eniwetok Atoll, one of the Marshall Islands, have not been previously studied. The only reference dealing with parasitic copepods from this general region of the Pacific is that of Heegaard (1943) concerning some caligids from the GUbert Islands. Both Heegaard (1940, 1962) and Kabata (1964, et al), however, have described copepods from fishes from the neighboring Australian region, some of which are also found on fishes from Eniwetok Atoll, and Hewitt (1963, et al.) and Thomson (1889) have described copepods from fishes of New Zealand. These studies, as weU as those of Lewis (1964a, et al.) concerning copepods from Hawaiian fishes, cover most of the named species although some of them have previously been described from other areas, prunarHy the western Pacific and the Indian Ocean. The study herein reported is based on two collections made by the author during the summers of 1959 and 1961. He is indebted to the U.S. Atomic Energy Commission for the use of the facilities at the Eniwetok Marine Biological Laboratory. He is also grateful for the 1 This study was supported by a grant (GB-3932) from the National Science Foundation. 2 Associate Professor of Zoology and Oceanography, Institute of Oceanography, University of British Columbia, Vancouver, B.C., Canada. 1