Overview

Comprehensive Description

Description

"Description:
The length of the body may reach 11 mm; it is coloured greenish white, with the digestive gland showing green or brownish through the translucent skin, especially within the cerata, which are arranged in a latero-dorsal pattern of up to eight transverse rows. Each ceras is smooth and rounded at the tip. The anal opening is antero-dorsal, just behind the head. The rhinophores are inrolled.

Habitat:
This species lives and feeds upon the algae Codium tomentosum andBryopsis plumosa . All records of P. dendritica have come from shallow water, with rare captures on the lower shore.

Distribution:
Distributed in NW Europe from Norway to the Mediterranean Sea (Distr. P. dendritica), New England to the Caribbean Sea; Japan; Australia; California."

Marine Species of the North Sea: http://www.species-identification.org/species.php?species_group=mollusca&selected=beschrijving&menuentry=soorten&id=905

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Source: Cataloging Diversity in the Sacoglossa

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Distribution

Newfoundland to New Zealand. Rare in our area, so far: Logy Bay, Newfoundland; Annapolis Basin, Chester Basin, and Isaacs Harbour, Nova Scotia.
  • North-West Atlantic Ocean species (NWARMS)
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Source: World Register of Marine Species

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Southern California (Greene, 1970)

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Source: Cataloging Diversity in the Sacoglossa

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Ecology

Habitat

Depth range based on 3 specimens in 1 taxon.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 8.5 - 31.2
  Temperature range (°C): 24.091 - 24.091
  Nitrate (umol/L): 0.154 - 0.154
  Salinity (PPS): 35.464 - 35.464
  Oxygen (ml/l): 4.932 - 4.932
  Phosphate (umol/l): 0.115 - 0.115
  Silicate (umol/l): 1.307 - 1.307

Graphical representation

Depth range (m): 8.5 - 31.2
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Associations

Found on and (likely) eating Codium fragile and Bryopsis corticulans (Greene, 1970). Algae on AlgaeBase: Codium fragile, Bryopsis corticulans.

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Source: Cataloging Diversity in the Sacoglossa

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General Ecology

Ecology

This sea slug retains photosynthetically active chloroplasts from Codium fragile and Bryopsis corticulans, the algae on which it feeds, within cells of its digestive diverticula (digestive tract) from (Greene, 1970).

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Source: Cataloging Diversity in the Sacoglossa

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Molecular Biology and Genetics

Molecular Biology

Barcode data: Placida dendritica

The following is a representative barcode sequence, the centroid of all available sequences for this species.


There are 2 barcode sequences available from BOLD and GenBank.

Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.

See the BOLD taxonomy browser for more complete information about this specimen and other sequences.

ACTTTATATATAATTTTTGGTATGTGATGTGGTCTTGTTGGTACCGGGCTA---AGTTTATTAATTCGTTTTGAATTAGGGACTTCCGGTGCTCTTTTAGGGGAT---GACCATTTTTACAATGTAATCGTTACAGCACATGCTTTTGTGATGATTTTTTTTATAGTTATGCCTCTTATAATCGGGGGATTCGGAAATTGGATGGTTCCCATCCTA---ATTGGGGCACCTGATATAAGGTTCCCTCGAATAAATAACATAAGTTTTTGACTTCTCCCACCTTCTTTTATCTTATTACTGTGCTCTAGCCTCGTTGAGGGAGGTGCAGGTACAGGATGGACAGTGTATCCCCCTCTAAGGGGTCCAATTGGCCATGGAGGTGCTTCCGTGGACTTG---GCAATTTTTTCACTCCACCTAGCAGGGATGTCTTCTATTCTAGGTGCAGTAAACTTTATTACTACCATTTTTAATATGCGGTCGCCCGGAATTACTATGGAACGTCTTAGTCTTTTTGTGTGGTCTGTGCTTATTACAGCTTTTCTTCTTTTACTATCTCTTCCTGTGCTTGCAGGG---GCAATTACTATACTATTAACAGATCGGAATTTTAATACTAGCTTCTTTGATCCTGCTGGAGGTGGTGACCCTATTCTATACCAGCACTTA
-- end --

Download FASTA File

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Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Placida dendritica

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 2
Species With Barcodes: 1
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Source: Barcode of Life Data Systems (BOLD)

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Relevance to Humans and Ecosystems

Benefits

References

Adams, A. A. and H. Adams. 1855. The Genera of the Recent Mollusca, arranged according to their organization Vol. 3 John van der Voort, London.

Guiry, M.D. & Guiry, G.M. 2010. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 15 April 2010.

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Wikipedia

Placida dendritica

Placida dendritica is a species of minute sea slug, a marine opisthobranch gastropod mollusk or micromollusk in the family Limapontiidae. [1]

Despite a superficial resemblance, this is not a nudibranch, it is a sacoglossan (i.e. it is in the order Sacoglossa).

Placida dendritica is known for its ability to photosynthesize, using ingested and assimilated plastids.

Distribution

This species is found worldwide.

References

  1. ^ a b WoRMS : Placida dendritica accessed : 13 October 2010]
  • Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
  • de Kluijver, M.J.; Ingalsuo, S.S.; de Bruyne, R.H. (2000). Macrobenthos of the North Sea [CD-ROM]: 1. Keys to Mollusca and Brachiopoda. World Biodiversity Database CD-ROM Series. Expert Center for Taxonomic Identification (ETI): Amsterdam, The Netherlands. ISBN 3-540-14706-3
  • Bleakney, J.S. 1996. Sea slugs of Atlantic Canada and the Gulf of Maine. The Nova Scotia Museum Field Guide Series. Nimbus Publishing. Halifax. 216 p.
  • Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180-213
  • Willan, R. (2009). Opisthobranchia (Mollusca). In: Gordon, D. (Ed.) (2009). New Zealand Inventory of Biodiversity. Volume One: Kingdom Animalia. 584 pp
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