| Summary: | Material representing 38 species of parasitic Copepoda, Order Caligoida, from New Zealand marine fishes, belonging to 20 genera and six families is discussed. Except for Lepeophtheirus erecsoni Thomson, of which only damaged material was available, the species are described and figured in detail. Previous records from New Zealand waters are discussed. The name Caligus vicarius is proposed for C. longicaudatus Brady which is preoccupied. Species examined and their hosts are as follows (new hosts for previously known species, and previously known species newly recorded from New Zealand are marked with asterisks) - Caligidae: Caligus brevis Shiinox on Pseudolabrus pittensisx, P. milesx and P. celidotusx; C. aesopus Wilsonx on Seriola grandisx; C. pelamydis Kroyerx on Thyrsites atunx; C. buechlerae Hewitt on Tripterygion sp.; Lepeophtheirus erecsoni Thomson on Latridopsis ciliaris; L. scutiger Shiinox on Pseudolabrus pittensisx, P. milesx and P. celidotusx; L. insignis Wilsonx on Mola mola; L. polyprioni Hewitt on Polyprion oxygenios and P. moeone; L. argentus Hewitt on Hyperoglyphe porosa; L. heegaardi Hewitt on Lepidopus caudatus; L. distinctus Hewitt on Genypterus blacodes; Euyphoridae: Gloiopotes huttoni (Thomson) on Makaira mitsukurii and M. marlina; Elytrophora brachyptera Gerstaekerx on Thunnus alalunga and. T. maccoyix; Pandaridae: Nesippus orientalis Hellerx on Mustelus antarcticus and Notorhynchus pectorosusx; N. borealis (Steenstrup and Lutken)x on Isurus oxyrinchusx; Dinemoura latifolia Steenstrup and Lutken on Carcharodon carcharias, Isurus oxyrinchus and Galeorhinus australis; D. producta (Muller) on Cetorhinus maximus and Carcharodon carcharias; Demoleus latus Shiinox on Squalus acanthiasx; Echthrogaleus braccatus (Dana) on an unrecorded host; E. coleoptratus (Guerin)x on Prionace glauca and Lamna nasus; E. denticulatus Smith on an unrecorded host; Phyllothyreus cornutus (Milne-Edwards)x on Isurus oxyrinchus; Pandarus bicolor Leachx on Squalus acanthias, Galeorhinus australisx, Notorhynchus ...
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