Caprella Bathytatos new Species (Crustacea, Amphipoda, Caprellidae), from the Mouthparts of the Crab Macroregonia Macrochira Sakai (Brachyura, Majidae) in the vicinity of deep-sea hydrothermal vents off British Columbia
Caprella bathytatos new species, is described from the mouthparts of spider crabs in the vicinity of deep-sea hydrothermal vents off British Columbia. The species was found attached to the setae of the third maxillipeds of the majid crab species Macroregonia macrochira, a vagrant associate of hydrothermal vents in this region. The new caprellid is morphologically very similar to Caprella ungulina Mayer, a species known from the mouthparts of lithodid (anomuran) crabs, but is characterized by a first gnathopod that lacks grasping spines and by pereopods having a notched propodus that facilitates attachment to the host setae. This report extends the depth record for the genus Caprella to over 2200 m, is the first report of caprellids associated with brachyuran crab mouthparts as the primary (or only) substratum, and is the first record of any member of the family Caprellidae in the vicinity of marine hydrothermal vents.
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Document Type: Research Article
Publication date: 01 July 1998
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