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A new species of Rimicaris (Crustacea: Decapoda: Caridea: Alvinocarididae) from hydrothermal vent fields on the Mid-Cayman Spreading Centre, Caribbean

A new species of Rimicaris (Crustacea: Decapoda: Caridea: Alvinocarididae) from hydrothermal vent fields on the Mid-Cayman Spreading Centre, Caribbean
A new species of Rimicaris (Crustacea: Decapoda: Caridea: Alvinocarididae) from hydrothermal vent fields on the Mid-Cayman Spreading Centre, Caribbean
Rimicaris hybisae sp. nov. is described from hydrothermal vent fields on the world's deepest seafloor spreading centre, the Mid-Cayman Spreading Centre (MCSC), Caribbean, at depths of 2300-4960 m. The new species is described and illustrated on the basis of 17 specimens. Brief notes on the distribution and habitat of the new species are provided. Molecular phylogenetic data from mitochondrial COI (460 base pair (bp)), 16S ribosomal RNA (549 bp) and nuclear 18S ribosomal RNA (576 bp) regions is used to complement the description. Morphological variation within R. hybisae sp. nov. and morphological affinities with previously described species are discussed. Based on morphological and molecular evidence, the new species is provisionally assigned to the genus Rimicaris, and differs from all known species in the genus by a distinctive pair of 'pores' on the posterior lobes of its four-lobed dorsal organ. An emended diagnosis for Rimicaris is provided. Rimicaris hybisae sp. nov. is the first taxon to be described from MCSC vent fields. This record extends the known geographical range of Rimicaris into the Caribbean Sea and constitutes the deepest documented occurrence of alvinocaridid shrimp.
0025-3154
1057-1072
Nye, Verity
e3688d01-623f-47b5-9a4c-7e49b16aa5a8
Copley, Jon
5f30e2a6-76c1-4150-9a42-dcfb8f5788ef
Plouviez, Sophie
543b2eef-b0d7-46fc-a187-82760b442c56
Nye, Verity
e3688d01-623f-47b5-9a4c-7e49b16aa5a8
Copley, Jon
5f30e2a6-76c1-4150-9a42-dcfb8f5788ef
Plouviez, Sophie
543b2eef-b0d7-46fc-a187-82760b442c56

Nye, Verity, Copley, Jon and Plouviez, Sophie (2012) A new species of Rimicaris (Crustacea: Decapoda: Caridea: Alvinocarididae) from hydrothermal vent fields on the Mid-Cayman Spreading Centre, Caribbean Journal of the Marine Biological Association of the United Kingdom, 92, (5), pp. 1057-1072. (doi:10.1017/S0025315411002001).

Record type: Article

Abstract

Rimicaris hybisae sp. nov. is described from hydrothermal vent fields on the world's deepest seafloor spreading centre, the Mid-Cayman Spreading Centre (MCSC), Caribbean, at depths of 2300-4960 m. The new species is described and illustrated on the basis of 17 specimens. Brief notes on the distribution and habitat of the new species are provided. Molecular phylogenetic data from mitochondrial COI (460 base pair (bp)), 16S ribosomal RNA (549 bp) and nuclear 18S ribosomal RNA (576 bp) regions is used to complement the description. Morphological variation within R. hybisae sp. nov. and morphological affinities with previously described species are discussed. Based on morphological and molecular evidence, the new species is provisionally assigned to the genus Rimicaris, and differs from all known species in the genus by a distinctive pair of 'pores' on the posterior lobes of its four-lobed dorsal organ. An emended diagnosis for Rimicaris is provided. Rimicaris hybisae sp. nov. is the first taxon to be described from MCSC vent fields. This record extends the known geographical range of Rimicaris into the Caribbean Sea and constitutes the deepest documented occurrence of alvinocaridid shrimp.

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e-pub ahead of print date: 2011
Published date: 14 December 2012
Organisations: Ocean Biochemistry & Ecosystems

Identifiers

Local EPrints ID: 206411
URI: http://eprints.soton.ac.uk/id/eprint/206411
ISSN: 0025-3154
PURE UUID: 9e269630-4a78-4946-a304-c987d8a3a0e8

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Date deposited: 20 Dec 2011 14:23
Last modified: 18 Jul 2017 11:03

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Contributors

Author: Verity Nye
Author: Jon Copley
Author: Sophie Plouviez

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