Overview

Comprehensive Description

Description

 The Celtic sea slug has a solid, oval and fleshy body up to 13 mm in length and 6 mm in width. It is a dark green-black inconspicuous slug with a mantle that is covered in large, coarse, evenly spaced tubercles, to which sand grains often adhere. When Onchidella celtica is motionless, the mantle completely obscures the head and pale grey foot. The head bears two short, thick, cylindrical tentacles with eyes at the tips. The head is only visible when the Celtic sea slug is mobile.This species is not an opisthobranch sea slug. It is a pulmonate slug more adapted to terrestrial and freshwater habitats, and related to most land snails. Being a pulmonate gastropod means that it has no gills. Therefore the mantle cavity acts as a lung and is closed by a sphinctered opening called the pneumostome, situated close to the anus. Pulmonate sea slugs also have no shell. It has a veliger larval stage which is completed within the egg capsule.
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Ecology

Habitat

 The Celtic sea slug can be found on exposed rock, usually on sandy shores amongst mussels, barnacles and hiding in crevices. It forages down the shore as the tide goes out, crawling on small algae and returning up the shore as the tide rises. Mainly observed between April and November.
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Onchidella celtica

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.

TTGCGATGATTATATTCGACAAACCATAAAGATATTGGCACTCTTTATATAATTTTTGGGATTTGATGTGGATTAGTGGGTACAGGATTG---TCACTGTTAATTCGATTCGAACTTGGTACCGTTGGAGTATTACTAGATAAT------CACTTTTATAATGTTATTGTTACTGCCCACGCCTTTGTCATGATTTTTTTTATAGTAATACCTTTAATAATTGGGGGGTTTGGGAACTGGATGGTCCCTTTGCTT---ATTGGGGCACCTGATATGAGATTTCCCCGAATAAATAATATAAGGTTCTGACTTCTTCCTCCCTCCTTTATCCTACTAATTGTCTCAAGTATGGTTGAAGGTGGTGCTGGGACAGGGTGAACAGTATATCCTCCTTTAAGAGGGCCTATTGGCCACAGAGGGGGGTCTGTAGATCTT---GTAATTTTTTCTCTTCATTTGGCTGGTATGTCGTCTATTTTAGGGGCAATTAACTTTATTACTACTATCTTTAATATGCGCTCTCCAGGAATAACAATGGAACGTGTAAACCTATTTGTCTGATCTACCTTAGTAACGGTATTTCTTTTATTACTGTCTCTCCCTGTTTTGGCCGGG---GCTATTACAATACTTTTAACCGATCGTAACTTTAATACAAGTTTTTTTGATCCCGCCGGCGGGGGGGATCCTATTCTGTATCAACACTTGTTCTGGTTCTTTGGTCACCCGGAAGTGTATATTTTAATTTTACCAGGCTTTGGTATAGTTTCTCATATTTTAAGAAATTTTACT------GTAAAACCAGCATTCGGAACCCTTGGAATAATTTATGCAATAGTGTCTATTGGAATCTTAGGATTTATTGTCTGAGCACATCACATGTTTACTGTAGGAATAGATGTGGACACACGGGCTTATTTTACTGCCGCCACAATGGTAATTGCAGTACCGACGGGTATTAAGATTTTTAGCTGACTAATA---ACTTTATATGGGAGT---CGGTGTCACCTGGGAGTTGCTATGTATTGAGTACTAGGGTTTATCTTCCTTTTTACGATGGGGGGTTTAACAGGAATTGTTCTGTCTAACTCTTCCTTAGATATTGTGCTTCATGATACCTACTATGTTGTGGCACATTTTCATTATGTT---TTATCTATAGGCGCTGTATTTGCGATTTTTGCTGGGCTGGTTTACTGGTTTCCTGTAATAACAGGGCTGTCTCTTCACGAGCGTTGAGCCAAGGCCCAGTTTTTGGTGATATTTTTTTCTGTTAATCTAACATTCTTTCCTCAGCACTTCTTAGGCCTGGCTGGTATGCCTCGT---CGTTATATTGATTATCCGGATTCTTACTAT---CAGTGGAATCAGCTCTCATCTTTCGGGTCCTTATTCTCAATTATTGCAGTAGTTATGTTTATATTTATTGTCTGGGAGGCGTTTATTTCTCAACGAAGAGTT---CTGTTTCCGGACGCG---TCAGCAATT
-- end --

Download FASTA File
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Statistics of barcoding coverage: Onchidella celtica

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

Onchidella celtica

Onchidella celtica is a species of air-breathing sea slug, a shell-less marine pulmonate gastropod mollusk in the family Onchidiidae.[2]

The complete nucleotide sequence of the mitochondrial genome of Onchidella celtica has been available since 2008.[3]

Contents

Description [edit]

Distribution [edit]

This species occurs locally on the East Atlantic coastline, from western Scotland, western England and the Channel Islands, south to Spain and the Azores, including:

Habitat [edit]

This air-breathing sea slug lives in the intertidal zone on rocky shorelines.

References [edit]

  1. ^ Cuvier G. (1817). Le règne animal distribué d'après son organisation, pour servir de base à l'histoire naturelle des animaux et d'introduction à l'anatomie comparée. Avec figures, dessinées d'après nature. Tome II, contenant les reptiles, les poissons, les mollusques et les annélides. pp. j-xviij [= 1-18], 1-532. Paris. (Deterville).
  2. ^ a b Onchidella celtica (Cuvier, 1817). 4 January 2011. Retrieved through: World Register of Marine Species.
  3. ^ Grande C., Templado J. & Zardoya R. 2008. Evolution of gastropod mitochondrial genome arrangements. BMC Evolutionary Biology 2008, 8:61. doi:10.1186/1471-2148-8-61
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