Overview

Comprehensive Description

Description

The body is translucent white in colour, and may reach up to 45mm in length. The cerata are extremely numerous, flattened and swollen. The brown digestive gland is clearly visible through the translucent epidermis of the cerata, and becomes purple just below the cnidosac. The cerata have a sub-terminal ring of yellow pigment, with a white ring below this. The rhinphores and oral tentacles are devoid of pigment.
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Source: Encyclopedia of Marine Life of Britain and Ireland

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Distribution

This species occurs all round the British Isles, America, Greenland, the Faeroes and Scandinavia. The most southerly record is from the Atlantic coast of France.
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Source: Encyclopedia of Marine Life of Britain and Ireland

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Ecology

Habitat

Depth range based on 77 specimens in 1 taxon.
Water temperature and chemistry ranges based on 4 samples.

Environmental ranges
  Depth range (m): 0 - 38
  Temperature range (°C): 11.054 - 11.244
  Nitrate (umol/L): 4.909 - 6.758
  Salinity (PPS): 35.218 - 35.229
  Oxygen (ml/l): 6.153 - 6.204
  Phosphate (umol/l): 0.452 - 0.485
  Silicate (umol/l): 2.311 - 2.512

Graphical representation

Depth range (m): 0 - 38

Temperature range (°C): 11.054 - 11.244

Nitrate (umol/L): 4.909 - 6.758

Salinity (PPS): 35.218 - 35.229

Oxygen (ml/l): 6.153 - 6.204

Phosphate (umol/l): 0.452 - 0.485

Silicate (umol/l): 2.311 - 2.512
 
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Eubranchus tricolor is reported to feed on both gymnoblastic and calyptoblastic hydroids. In Britain it is often found in large numbers on Nemertesia ramosa colonies, during the summer months. An aberrant form has been frequently found on Tubularia indivisa in the spring.
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Source: Encyclopedia of Marine Life of Britain and Ireland

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Eubranchus tricolor

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 4
Species With Barcodes: 1
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Source: Barcode of Life Data Systems (BOLD)

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