Mesonerilla neridae , n. sp. (Nerillidae): First meiofaunal annelid from deep-sea hydrothermal vents.
Though most common in coastal sandy bottoms, nerillid annelids have been found in a broad variety of habitats around the world and two genera have previously been reported from the deep sea. During a cruise to the southern East Pacific Rise and northern Pacific Antarctic Ridge (near Easter Island) i...
| Main Authors: | , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
2009
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| Subjects: | |
| Online Access: | https://curis.ku.dk/portal/da/publications/mesonerilla-neridae-n-sp-nerillidae-first-meiofaunal-annelid-from-deepsea-hydrothermal-vents(117618f0-d42e-11de-a1f3-000ea68e967b).html http://www.mapress.com/zoosymposia/content/2009/v2/f/v002p297-303f.pdf |
| Summary: | Though most common in coastal sandy bottoms, nerillid annelids have been found in a broad variety of habitats around the world and two genera have previously been reported from the deep sea. During a cruise to the southern East Pacific Rise and northern Pacific Antarctic Ridge (near Easter Island) in 2005, six specimens of a new species of Mesonerilla were collected at depths of 2234-2649 m. Samples were taken via DSV Alvin with a slurp gun collecting fine silt and volcanic glass shards in cracks, fissures, and mussel beds from 5-20 m away from active venting areas. As well as being the first deep-sea hydrothermal vent associated nerillid, this is the first record of an adult meiofaunal annelid from deep-sea hydrothermal vent areas and the first record of Mesonerilla from the deep sea. Based on the new material we here describe a new species of Mesonerilla , M. neridae sp. nov., with nine chaetigerous segments, three antennae, long chaetae, and almost no ciliation. It resembles the subtidal, interstitial M. roscovita in the shared presence of a short median antenna and M. fagei and M. lüderitzi by presence of chaetae in the shared presence of a short median antenna and and by presence of chaetae in segment one and relatively short parapodial cirri. |
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