Overview

Comprehensive Description

Description

 A large, brilliantly coloured slug that grows up to 8 cm long. The body is white, suffused with pink in parts, varying to red in some individuals. There is a yellow band that runs around the edge of the foot. The head has two slender tentacles at the front, the body has a row of shorter tentacles on each side which extend to a circle of 21 gills at the back of the body. These are white at the base with orange or yellow tips.
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Description

The maximum recorded length of this attractive nudibranch is 80mm. The body is white, suffused with pink in parts, varying to red in some individuals. Finger-like processes project from the head the edges of the mantle and the middle of the dorsum. These processes are orange with yellow or white tips. There is a yellow band that runs around the edge of the foot. The lamellate rhinophores are rosy in colour with yellow tips.
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Source: Encyclopedia of Marine Life of Britain and Ireland

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Distribution

A rare species in the British Isles, Okenia elegans has been found at scattered localities in SW England, Skomer Is., the Saltees in Co Wexford and the Skerries, Portrush, Co Antrim.
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Source: Encyclopedia of Marine Life of Britain and Ireland

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Ecology

Habitat

Depth range based on 1 specimen in 1 taxon.

Environmental ranges
  Depth range (m): 21 - 21
 
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 It is often found burrowed inside the test of the sea squirt Polycarpa scuba, on which it feeds.
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This nudibranch feeds on the ascidian Polycarpa scuba. It is often found burrowed inside the test of the ascidian, with only its gills protruding. The spawn consists of a pink ribbon which is irregularly and loosely coiled.
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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: Okenia elegans

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

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Wikipedia

Okenia elegans

Okenia elegans is a species of a sea slug, specifically a dorid nudibranch, a marine gastropod mollusc in the family Goniodorididae.

References

  1. ^ Leuckart F .S. (1828). Breves animalium quorundam maxima ex parte marinorum descriptiones. Heidelberg, Oßwald, 24 pp., Okenia elegans is on the page 15, one unnumbered plate, figures 2a-b.
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