Journal
JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM
Volume 94, Issue 2, Pages 267-284Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0025315413000210
Keywords
Hexactinellida; glass sponges; north-eastern Pacific; biodiversity; seamount; Hexasterophora; Gulf of Alaska
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Funding
- NOAA's Office of Ocean Exploration
- Natural Sciences and Engineering Council of Canada
- Fisheries and Oceans Canada
- Monterey Bay Aquarium Research Institute
- Royal British Columbia Museum, Victoria, BC, Canada
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Six new species of Hexactinellida are described from hard bottom communities of shelf, canyon and seamounts of the west coast of North America: Washington, British Columbia and Gulf of Alaska. They were collected by a variety of methods, trawl, manned submersible, and robot submersible, and hence vary greatly in condition. The six species comprise additions to five different families of the subclass Hexasterophora, Farreidae (Farrea omniclavata sp. nov. and F. truncata sp. nov.), Euretidae (Chonelasma oreia sp. nov.), Euplectellidae (Amphidiscella lecus sp. nov.), Leucopsacidae (Oopsacas olympicus sp. nov.) and Rossellidae (Acanthascus malacus sp. nov.). These additions represent an increase of 29% to the known species of Hexactinellida in this area. A completely unique form of defended tabulate stalk is described for A. lecus. The species Chauoplectella spinifera is transferred to Oopsacas.
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