Overview

Comprehensive Description

Color: Orange red or white (F. elegans from Atlantic).
  • CLARK A.M. & MAH C. (2001) Echinoderm Studies 6: 229-347.

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Suspension feeding is the observed feeding mode in all brisingidans, but there are likely taxon-specific adjustments to flow regime and local feeding environment for different brisingidan taxa. Specimens generally isolated in abyssal environment, but often in large density on dead chimneys mainly in vent areas of Pacific mid-oceanic ridges; fewer at the Mid-Atlantic Ridge. Although observed on dead vent chimneys, most species of Freyella have been collected from abyssal soft-bottom sediments.
  • CLARK A.M. & MAH C. (2001) Echinoderm Studies 6: 229-347.

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Distribution

East Pacific Rise: 13°N; Pacific-Antarctic Rise; Western Pacific: Lau and N-Fiji Back-Arc Basins. Distribution of this genus is worldwide, 1200-6860 m.
  • CLARK A.M. & MAH C. (2001) Echinoderm Studies 6: 229-347.

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Physical Description

Morphology

Brisingidans with tesellate plates over abactinal arm surface, continuous with disk plates. Proximal syzygies (basal adambulacrals) articulated with tissue and not directly fused. Papulae absent. Arms number varies from six to 15. Interradial arcs gently curved.
  • CLARK A.M. & MAH C. (2001) Echinoderm Studies 6: 229-347.

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Size

General range: Disk diameter in adults: 1-3.2 cm, arms in adults up to >20.0 cm.
  • CLARK A.M. & MAH C. (2001) Echinoderm Studies 6: 229-347.

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Ecology

Habitat

Depth range based on 146 specimens in 19 taxa.
Water temperature and chemistry ranges based on 125 samples.

Environmental ranges
  Depth range (m): 0 - 6150
  Temperature range (°C): -1.096 - 6.113
  Nitrate (umol/L): 17.472 - 43.616
  Salinity (PPS): 34.119 - 35.046
  Oxygen (ml/l): 0.303 - 7.045
  Phosphate (umol/l): 1.116 - 3.284
  Silicate (umol/l): 12.606 - 180.924

Graphical representation

Depth range (m): 0 - 6150

Temperature range (°C): -1.096 - 6.113

Nitrate (umol/L): 17.472 - 43.616

Salinity (PPS): 34.119 - 35.046

Oxygen (ml/l): 0.303 - 7.045

Phosphate (umol/l): 1.116 - 3.284

Silicate (umol/l): 12.606 - 180.924
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                        
Specimen Records:1Public Records:1
Specimens with Sequences:1Public Species:1
Specimens with Barcodes:1Public BINs:1
Species:1         
Species With Barcodes:1         
          
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© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Barcode data

Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Locations of barcode samples

Collection Sites: world map showing specimen collection locations for Freyella

Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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