Systematic Parasitology

, Volume 13, Issue 2, pp 81–101 | Cite as

Three species of Trebius Krøyer, 1838 (Copepoda: Siphonostomatoida) parasitic on Pacific elasmobranchs

  • Gregory B. Deets
  • Masahiro Dojiri


The paratypes of Trebius akajeii Shiino, 1954, originally collected from Dasyatis akajei (Müller & Henle) at Owase, Japan, and the paratypes and newly collected specimens of T. latifurcatus Wilson, 1921, previously collected from Urolophus and Myliobatis at Venice, California, are redescribed. New host records for T. latifurcatus are: Torpedo californica Ayres, Squatina californica Ayres, Rhinobatos productus (Ayres), Platyrhinoides triseriata (Jordan & Gilbert), Raja inornata (Jordan & Gilbert) and Gymnura marmorata (Cooper). A new species, Trebius heterodonti, is described from the horn shark Heterodontus francisci (Girard) collected from southern California waters. These three species of Trebius are apparently closely related to each other. Diagnostic characters of the species are provided along with a discussion on the taxonomic value of selected features.


Diagnostic Character Host Record California Water Horn Shark Southern California Water 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Kluwer Academic Publishers 1989

Authors and Affiliations

  • Gregory B. Deets
    • 1
    • 2
  • Masahiro Dojiri
    • 1
  1. 1.Institute of Parasitology, Department of BiologyCalifornia State UniversityLong BeachUSA
  2. 2.Department of Zoologythe University of British ColumbiaVancouverCanada

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