Overview

Comprehensive Description

Description

"Barentsia, nov. gen.
Generic character. Polypides with a cup-shaped body supported on a long peduncle, having a muscular enlargement at the base, the upper part fleshy and naked, the rest chitinous ; peduncles borne on an erect chitinous stem, bulbous at the base; the stems united by a creeping stolon, with a chitinous investment. The polypides of this very interesting form closely resemble those of Pedicellina; but it is separated from the latter genus by the singular structure of its zoarium. From the creeping stolon (which is more or less chitinous, and not, as in Pedicellina, a mere soft fleshy thread) rise at intervals tall chitinous stems terminating below in a somewhat bulbous enlargement. Along one side of the stems are placed at short distances from one another small bracket-like projections; and each of these supports a long peduncle with a polypide at its upper extremity. Immediately above the point of origin the peduncle is enlarged for a short distance, as in Pedicellina gracilis; and this portion is probably muscular in structure. Above the enlargement the peduncle is slender, and for a large proportion of its length composed of chitine; the terminal portion, however, immediately supporting the polypide is fleshy as in Pedicellina. Sometimes the main stem terminates above in two polypides (P1. XV. fig. 12). One of the most striking differences between Вarentsia and Pedicellina is the extent to which chitine enters into the structure of the former. In Pedicellina the whole colony is usually fleshy; the only exception is found in P. gracilis, which has the upper portion of the peduncle composed of a rigid (and probably chitinous) material." (Hinks, 1880:285)

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© National Museum of Natural History, Smithsonian Institution

Source: Antarctic Invertebrates Website (NMNH)

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Ecology

Habitat

Depth range based on 31 specimens in 10 taxa.
Water temperature and chemistry ranges based on 5 samples.

Environmental ranges
  Depth range (m): 0 - 4130
  Temperature range (°C): 2.520 - 10.927
  Nitrate (umol/L): 11.847 - 29.944
  Salinity (PPS): 33.687 - 34.937
  Oxygen (ml/l): 2.674 - 5.427
  Phosphate (umol/l): 0.934 - 2.595
  Silicate (umol/l): 5.536 - 45.824

Graphical representation

Depth range (m): 0 - 4130

Temperature range (°C): 2.520 - 10.927

Nitrate (umol/L): 11.847 - 29.944

Salinity (PPS): 33.687 - 34.937

Oxygen (ml/l): 2.674 - 5.427

Phosphate (umol/l): 0.934 - 2.595

Silicate (umol/l): 5.536 - 45.824
 
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

Locations of barcode samples

Collection Sites: world map showing specimen collection locations for Barentsia

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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Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                        
Specimen Records:5Public Records:1
Specimens with Sequences:1Public Species:1
Specimens with Barcodes:1Public BINs:1
Species:2         
Species With Barcodes:1         
          
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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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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