Overview

Brief Summary

Remarks: This species was insufficiently described to be correctly diagnosed or compared with other actinostolid genera and species. The familial pertinence was tentative after the supposed absence of acontia in the single fragment available to study by DOUMENC & VAN PRAËT (1986). Material collected in the type locality should be re-described in order to precise the taxonomic status of this genus and species.
  • DOUMENC D. & M. VAN PRAËT (1986) Oceanol. Acta 8: 61-68.

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Comprehensive Description

Color: Whitish in situ, column and tentacles dark brownish, mesenteries pale beige.
  • DOUMENC D. & M. VAN PRAËT (1986) Oceanol. Acta 8: 61-68.

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As other sea anemones, probably feeds on caught prey, with a relative wide prey size-range. All other biological aspects are unknown. The association with bacterial symbionts has not been demonstrated. Lives on the walls of the black smokers at temperatures of 12-20°C and on sulphide rocks.
  • DOUMENC D. & M. VAN PRAËT (1986) Oceanol. Acta 8: 61-68.

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Distribution

East Pacific Rise: 13°N.
  • DOUMENC D. & M. VAN PRAËT (1986) Oceanol. Acta 8: 61-68.

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Physical Description

Morphology

Column smooth, with distal margin distinctly marked; tentacles occupying most oral disc, reaching near to the mouth; more mesenteries distally than proximally; sphincter mesogloeal, strong, on the endodermic face of the mesogloeal layer; retractor musculature diffuse and weak; longitudinal musculature of tentacles ectodermic; radial musculature of the oral disc ecto-mesogleal.
  • DOUMENC D. & M. VAN PRAËT (1986) Oceanol. Acta 8: 61-68.

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Size

Diameter of pedal disc, 10 mm, height, 35 mm; tentacles, ca. 25 mm.
  • DOUMENC D. & M. VAN PRAËT (1986) Oceanol. Acta 8: 61-68.

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Ecology

Habitat

Depth range based on 5 specimens in 1 taxon.
Water temperature and chemistry ranges based on 5 samples.

Environmental ranges
  Depth range (m): 2521 - 2632.5
  Temperature range (°C): 1.823 - 1.831
  Nitrate (umol/L): 39.491 - 41.112
  Salinity (PPS): 34.663 - 34.669
  Oxygen (ml/l): 2.463 - 2.537
  Phosphate (umol/l): 2.754 - 2.812
  Silicate (umol/l): 159.968 - 161.139

Graphical representation

Depth range (m): 2521 - 2632.5

Temperature range (°C): 1.823 - 1.831

Nitrate (umol/L): 39.491 - 41.112

Salinity (PPS): 34.663 - 34.669

Oxygen (ml/l): 2.463 - 2.537

Phosphate (umol/l): 2.754 - 2.812

Silicate (umol/l): 159.968 - 161.139
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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