Proceedings of 

 the United States 

 National Museum 



SMITHSONIAN INSTITUTION • WASHINGTON, D.C. 



Volume 122 1967 Number 3600 



Genus Gloiopotes and a New Species 



With Notes on Host Specificity 



And Intraspecific Variation 



(Copepoda: Caligoida) 



By Roger F. Cressey 

 Associate Curator, Division of Crustacea 



Examination of 94 recent collections of the genus Gloiopotes have 

 made possible a reevaliiation of the species and certain conclusions 

 regarding host specificity and intraspecific variation. In 19G4 Hewitt 

 published an account of Gloiopotes huttoni with notes on the other 

 species. In his paper he placed G. watsoni in synonymy with G. 

 huttoni and attributed the difi"erences to variation within the species. 

 I have been able to show that the two are actually distinct and should 

 be considered separate species. In addition a new species from the 

 Gulf of Mexico is described below. 



I am indebted to the following persons who generously donated 

 material to me for inclusion in this study: Dr. Bruce CoUette, Bureau 

 of Commercial Fisheries; Dr. Robert Gibbs, Smithsonian Institution; 

 Dr. Richard Gooding, University of Singapore; and Dr. Alan Lewis, 

 University of British Columbia. A portion of the field work was 

 supported by the National Science Foundation, U.S. Program in 

 Biology. 



All drawings were made with the aid of a camera lucida. 



All material has been desposited in the Museum of Natural History, 

 Smithsonian Institution. 



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