First whale fall chaetopterid; a gigantic new species of Phyllochaetopterus (Chaetopteridae: Annelida) from the deep sea off California

TitleFirst whale fall chaetopterid; a gigantic new species of Phyllochaetopterus (Chaetopteridae: Annelida) from the deep sea off California
Publication TypeJournal Article
Year of Publication2014
AuthorsNishi E., Rouse GW
JournalProceedings of the Biological Society of Washington
Volume126
Pagination287-298
Date Published2014/01
Type of ArticleArticle
ISBN Number0006-324X
Accession NumberWOS:000330599600001
Keywordsannelid; atlantic; baleen; bay; central japan; collections; deposit; deposit feeder; fauna; okinawa; osedax; polych-ae-ta; polychaete; sagami; spiochaetopterus chaetopteridae; taxonomy; whale fall
Abstract

Phyllochaetopterus gigas, new species, was found living associated with a whale fall lying at 2892 meters depth in the Monterey Submarine Canyon, off California, U.S.A. The new species was found over a period of nine yr adjacent to, on, or in sediment lying over, the baleen of the whale fall. Phyllochaetopterus gigas is characterized by its large size (up to 30 cm preserved body length), long palps, coloration, and patterning of the ventral shield of the anterior region (region A), the presence of 4-6 large cutting chaetae on each parapodium of the fourth chaetiger (a4), the shape of these chaetae (with a pear-shaped head, some small lateral teeth on the edge), and presence of two middle-region (region B) chaetigers with foliose notopodia. The new species is compared to other Phyllochaetopterus species and appears to be, at least in part, a deposit feeder.

Short TitleProc. Biol. Soc. Wash.
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