Proceedings of the United States National Museum SMITHSONIAN INSTITUTION • WASHINGTON, D.C. Volume 121 1967 Number 3570 REVISION OF THE FAMILY PANDARIDAE (COPEPODA: CALIGOIDA)i By Roger Cressey Associate Curator, Division of Crustacea In 1907, C. B. Wilson published a revision of the subfamily Pandarinae as part of a series of papers dealing with caligoid copepods. We now recognize that much of this work was superficial, containing descriptions of species often incomplete and inadequately figured; nevertheless, it served to focus attention on a group of parasites, caligoid copepods, which were then and are still today poorly known in most cases. Between 1960 and 1965 I collected and solicited material of the family Pandaridae from as many different areas as possible. As a result of this accumulation of material and data, I feel that a revision of the family is in order. Ecological relationships are now more evident than before. Because of inadequate species descriptions that exist for most members of this family, positive identification of material is often difficult. This results in the publication of records that obscure our understanding of existing host-parasite relationships. I believe that, in most cases, I have examined enough samples of members of this ' Modified from a Ph. D. dissertation submitted to Boston University, Boston, Mass.