Physical Description

Diagnostic Description

"Prostomium conical, narrow, and tapered anteriorly; occipital tentacle and eyes present or absent. Peristomium fused to postomium without lateral wings. Branchiae beginning on chaetiger 2, present in the anterior region of the body, branchiae all cirriform, not fused to the dorsal lamellae. Chaetae of two types: limbate capillaries anteriorly, and bidentate, tridentate or tetradentate hooded hooks arranged in the notopodia and neuropodia of the median and posterior region. Pygidium with 2-12 acuminate anal cirri." (R. Sarda, G. San Martin, E. Lopez, D. Martin, 2006).

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© Archer, Cameron

Source: EOL Interns LifeDesk

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Ecology

Habitat

Depth range based on 1456 specimens in 6 taxa.
Water temperature and chemistry ranges based on 1055 samples.

Environmental ranges
  Depth range (m): 0 - 1180
  Temperature range (°C): -0.862 - 27.668
  Nitrate (umol/L): 0.009 - 24.417
  Salinity (PPS): 33.398 - 38.824
  Oxygen (ml/l): 2.900 - 6.915
  Phosphate (umol/l): 0.038 - 1.864
  Silicate (umol/l): 0.805 - 26.949

Graphical representation

Depth range (m): 0 - 1180

Temperature range (°C): -0.862 - 27.668

Nitrate (umol/L): 0.009 - 24.417

Salinity (PPS): 33.398 - 38.824

Oxygen (ml/l): 2.900 - 6.915

Phosphate (umol/l): 0.038 - 1.864

Silicate (umol/l): 0.805 - 26.949
 
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