Crinoidea sp. 'NHM_008'

Glover, Adrian G, Wiklund, Helena, Rabone, Muriel, Amon, Diva J, Smith, Craig R, O'Hara, Tim, Mah, Christopher L & Dahlgren, Thomas G, 2016, Abyssal fauna of the UK- 1 polymetallic nodule exploration claim, Clarion-Clipperton Zone, central Pacific Ocean: Echinodermata, Biodiversity Data Journal 4, pp. 7251-7251 : 7251

Crinoidea sp. 'NHM_008'

Materials

Type status: Other material. Occurrence: catalogNumber: b2a871bf-46d5-4639-a839-427a3efa848c ; recordNumber: NHM_008; recordedBy: Adrian Glover, Helena Wiklund, Thomas Dahlgren, Maggie Georgieva; individualCount: 1; preparations: tissue and DNA voucher stored in 80% non-denatured ethanol aqueous solution; otherCatalogNumbers: 5023472; associatedSequences: http://www.ncbi.nlm.nih.gov/nuccore/KU519547 | KU519514 | KU519531; Taxon: taxonConceptID: Crinoidea sp. (NHM_008); scientificName: Crinoidea; kingdom: Animalia; phylum: Echinodermata; class: Crinoidea; Location: waterBody: Pacific; stateProvince: Clarion Clipperton Zone; locality: UK Seabed Resources Ltd exploration claim UK-1 ; verbatimLocality: UK-1 Stratum A; maximumDepthInMeters: 4171; locationRemarks: RV Melville Cruise MV1313; decimalLatitude: 13.881666666667; decimalLongitude: -116.46666666667; geodeticDatum: WGS84; Identification: identifiedBy: Adrian Glover, Helena Wiklund, Thomas Dahlgren; dateIdentified: 2015-06-01; identificationRemarks: identified by DNA and morphology; Event: samplingProtocol: USNEL Box Core; eventDate: 2013-10-08; eventTime: 17:15; habitat: Abyssal plain; fieldNumber: BC03; fieldNotes: Collected from polymetallic nodule found in benthic sediment; Record Level: language: en; institutionCode: NHMUK; collectionCode: ZOO; datasetName: ABYSSLINE; basisOfRecord: PreservedSpecimen

Description

Calyx 1.5mm long and 1.4mm wide with arms possibly incomplete. Arms present with 0.24mm in width, 0.95mm in length. Total length of calyx and distal part of stalk preserved 6.5mm. Stalk 0.32mm in width, stalk columnals approx 1mm in length. (Fig. 13)

Genetic data for this taxa with new GenBank accession numbers are provided in Table 2

Diagnosis

Morphologically close to Hyocrinus foelli Roux and Pawson 1999 but incomplete specimen prevents full identification. Forms a unique monophyletic clade distinct from other AB01 specimens. No genetic matches on GenBank or Barcode of Life Database.

Ecology

Specimen observed live on a small potato-sized polymetallic nodule from the eastern CCZ abyssal plain.