Parasitology Research

, 105:479 | Cite as

Diversity and ecological remarks of ectocommensals and ectoparasites (Annelida, Crustacea, Mollusca) of echinoids (Echinoidea: Mellitidae) in the Sea of Cortez, Mexico

  • Ernesto Campos
  • Alma Rosa de Campos
  • Jesús Angel de León-González
Original Paper

Abstract

The diversity of symbiotic invertebrates on intertidal and shallow water echinoids of the northwestern Gulf of California was studied. Five ectosymbionts were found: three pinnotherid crabs, Dissodactylus lockingtoni Glassell (1935), Dissodactylus nitidus Smith (1870), and Dissodactylus xanthusi Glassell (1936); one eulimid gastropod, Turveria encopendema Berry (1956); and one polychaete, Struwela sp. We discovered seasonal fluctuation in D. nitidus Smith (1870) and D. xanthusi Glassell (1936), which result in these species being undetectable during the winter season when the temperature in the head of the Gulf of California drops to 14–18°C; the rest of the species are permanent residents in this area. An updated list of all external macrosymbionts of echinoids of the Mexican Pacific is presented.

Notes

Acknowledgements

We are indebted to Lobo Orensanz and Sergio I. Salazar-Vallejo for their aid with the literature, SEM photographs, and taxonomic discussion on Struwela species; Andrés Warén who kindly provided us with the unavailable literature and confirmed the identity of T. encopendema Berry, 1956. The authors deeply appreciate the following persons and institutions for lending the voucher specimens and for the working facilities: Fernando Alvarez and José Luis Villalobos, Colección Nacional de Crustáceos, Instituto de Biologia, Universidad Nacional Autónoma de México, Mexico, Distrito Federal (EM); Alfredo Laguarda and Francisco Solís Marín, Colección Nacional de Equinodermos, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Distrito Federal, México (CNE); Michel E. Hendrickx, Colección de Macroinvertebrados, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Mazatlán, Sinaloa, México (EMU); and Angelika Brandt, Zoological Museum, Hamburg, Germany. This work was partially funded by a grant from CONACyT S52903-Q (México) “Sistemática, relaciones filogenéticas y evolución de los géneros Americanos de la subfamilia Pinnotherinae (Crustacea, Brachyura, Pinnotheridae)”. The senior author is a scholarship holder of the Consejo Nacional de Ciencia y Tecnología (CONACyT), México and a postgraduate student at the Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, México.

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Ernesto Campos
    • 1
  • Alma Rosa de Campos
    • 1
  • Jesús Angel de León-González
    • 2
  1. 1.Facultad de CienciasUniversidad Autónoma de Baja CaliforniaEnsenadaMéxico
  2. 2.Facultad de Ciencias BiológicasUANLSan Nicolás de los GarzaMéxico

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