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Marine Biodiversity

, Volume 48, Issue 3, pp 1325–1335 | Cite as

Description of a new endoparasitic copepod genus and species (Lamippidae) that induces gall formation in leaves of the sea pen Ptilosarcus gurneyi (Octocorallia) from British Columbia

  • Jason D. WilliamsEmail author
  • Bianca Anchaluisa
  • Christopher B. Boyko
  • Neil McDaniel
Original Paper

Abstract

A new genus and species of gall-forming endoparasitic copepod of the family Lamippidae is described from the orange sea pen Ptilosarcus gurneyi (Gray, 1860) collected in British Columbia, Canada. Lamippid copepods (over 50 species) are obligate endoparasites, some of which form galls in a variety of soft corals (Alcyonacea and Pennatulacea). Ptilosarcoma athyrmata n. gen., n. sp. is the first lamippid formally described from any species of Ptilosarcus Verrill, 1865. In total, 143 galls from six sea pens were dissected and found to typically contain one female and male copepod pair. Infested leaves of P. gurneyi had 1.4 ± 0.6 (n = 143) galls per leaf. Using light and scanning electron microscopy, the copepods were examined and found to most closely resemble those belonging to the genus Isidicola Gravier, 1914, based on the presence of maxillipeds and lack of acicules on the caudal rami; however, they are distinct from the sole species of Isidicola based on aspects of antennal morphology. We conclude that Lamippina laubieri Bouligand, 1960 is a synonym of L. aciculifera (Zulueta, 1908), thus the family presently contains 52 species and one subspecies. A key to lamippid genera and a table of all lamippid genera and species with all known hosts and locality records are provided.

Keywords

Cnidaria Copepod Lamippid Northeast Pacific Parasite 

Notes

Acknowledgments

We thank Mary Knight (American Museum of Natural History) for help in proper formation of the specific name. We also thank Douglas Swanston for assistance in field collections. Geoff Boxshall (Natural History Museum, London) kindly advised on the authorship of Copepoda and Poecilostomatoida. Peter Wimberger (Slater Museum of Natural History, the University of Puget Sound) kindly searched for Johnstone’s (1969) specimens. This research was supported, in part, by a grant from the National Science Foundation (DBI-1337525; PI: Williams, Hofstra University).

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Copyright information

© Senckenberg Gesellschaft für Naturforschung and Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.Department of BiologyHofstra UniversityHempsteadUSA
  2. 2.Division of Invertebrate ZoologyAmerican Museum of Natural HistoryNew YorkUSA
  3. 3.McDaniel PhotographyVancouverCanada

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