Acta Parasitologica

, Volume 55, Issue 1, pp 99–101 | Cite as

An accidental attachment of Elthusa raynaudii (Isopoda, Cymothoidae) in Etmopterus sp. (Squaliformes, Etmopteridae)

  • Ernest H. WilliamsJr.
  • Lucy Bunkley-Williams
  • David A. Ebert
Case Report


A female Elthusa raynaudii was found attached on the roof of the mouth facing inward in a lantern shark, Etmopterus sp. in Taiwan. This was backwards to all known cymothoid attachments in the mouths of fishes. This isopod naturally occurs in the gill chamber of fishes. The attachment must have occurred accidentally. This is only the fourth time this isopod has been collected in the northern hemisphere and the first for Taiwan and this host.


Accidental attachment Elthusa raynaudii lantern shark Etmopterus sp. northern hemisphere 


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Copyright information

© © Versita Warsaw and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Ernest H. WilliamsJr.
    • 1
  • Lucy Bunkley-Williams
    • 2
  • David A. Ebert
    • 3
  1. 1.Department of Marine SciencesUniversity of Puerto Rico at MayagüezMayagüezPuerto Rico
  2. 2.Department of BiologyUniversity of Puerto Rico at MayagüezMayagüezPuerto Rico
  3. 3.Pacific Shark Research CenterMoss Landing Marine LaboratoriesMoss LandingUSA

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