Deep-sea Echinoderidae (Kinorhyncha: Cyclorhagida) from the Northwest Pacific

  • Martin V. Sørensen Section for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, DK-1350 Copenhagen
  • Melissa Rohal Harte Research Institute, Texas A&M University – Corpus Christi, Corpus Christi, TX 78412
  • David Thistle Department of Earth, Ocean and Atmospheric Sciences, Florida State University, Tallahassee, FL 32306-4520
DOI: https://doi.org/10.5852/ejt.2018.456
Keywords: Echinoderes, Fissuroderes, kinorhynchs, meiofauna, new species, taxonomy

Abstract

The bathyal kinorhynch fauna along the Northwest American continental rise is explored, with emphasis on species of Echinoderidae Zelinka, 1894. Seven species of Echinoderes Claparède, 1863 are described as new to science: E. anniae sp. nov., E. dubiosus sp. nov., E. hamiltonorum sp. nov., E. hviidarum sp. nov., E. juliae sp. nov., E. lupherorum sp. nov. and E. yamasakii sp. nov. Three known species, Echinoderes hakaiensis Herranz, Yangel & Leander, 2017, E. cf. unispinosus Yamasaki, Neuhaus & George, 2018 and Fissuroderes higginsi Neuhaus & Blasche, 2006, are reported. The numerous new species indicate that the deep-sea still holds a great, undiscovered diversity of kinorhynchs, and that Echinoderes, as is also the case in more shallow, coastal waters, represents an important component of the deep-sea kinorhynch fauna. The presence of E. hakaiensis in the deep-sea sediments demonstrates that the species may occur at a great depth range, and suggests that depth may play a less important role for the distribution of some kinorhynch species. The finding of the Northeast Atlantic species E. cf. unispinosus and the Southwest Pacific species Fissuroderes higginsi could indicate that kinorhynch species in the deep-sea may cover considerably larger distributional ranges than is assumed for coastal species of Echinoderidae.

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Published
2018-08-17
How to Cite
Sørensen, M. V., Rohal, M., & Thistle, D. (2018). Deep-sea Echinoderidae (Kinorhyncha: Cyclorhagida) from the Northwest Pacific. European Journal of Taxonomy, (456). https://doi.org/10.5852/ejt.2018.456
Issue
No. 456 (2018): Deep-sea Echinoderidae (Kinorhyncha: Cyclorhagida) from the Northwest Pacific
Section
Zoology
Copyright (c) 2018 Martin V. Sørensen, Melissa Rohal, David Thistle

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