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Article
Published: 2016-01-12

A new species of Pachycara Zugmayer, 1911 (Teleostei: Zoarcidae) from deep-sea chemosynthetic environments in the Caribbean Sea

South African Institute for Aquatic Biodiversity, Private Bag 1015, Grahamstown 6140, South Africa.
Ocean and Earth Science, University of Southampton, Waterfront Campus, European Way, Southampton SO14 3ZH, UK
Ocean and Earth Science, University of Southampton, Waterfront Campus, European Way, Southampton SO14 3ZH, UK Natural History Museum, Cromwell Road, London SW7 5BD, UK
Pisces Zoarcidae Pachycara eelpout Caribbean Sea Mid-Cayman Spreading Centre hydrothermal vents methane seep

Abstract

The 28th species of the eelpout genus Pachycara Zugmayer, 1911, is described from specimens collected from an active hydrothermal vent field at a depth of about 2300 m at the Mid-Cayman Spreading Centre of the Caribbean Sea. A tentatively identified early juvenile is recorded at a methane seep at a depth of 1049 m near Tobago. The new species is distinguished from its congeners mainly by its few pectoral fin rays, low vertebral counts, single, mediolateral branch of the lateral line system and presence of scales on the nape and cheeks.

 

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