Overview

Comprehensive Description

General Description

The shell is large, up to 110 mm long, rather thickwalled and solid. It is moderately short, wedge-shaped-modioliform, little variable, and modestly inflated. The shell is equivalve, with a length/height ratio of 1.8-1.9. The beaks are almost terminal to terminal or even slightly protruding anteriorly. The anterior margin is narrowly rounded, whilst the ventral margin is visibly concave in the middle part, occasionally with a well-marked crease at the end of the first fourth or fifth of the valve, which makes the anterior part appear bent ventrally. The posterior margin is ventrally broadly rounded ventrally, and the postero-dorsal margin is markedly convex. The postero-dorsal corner is well rounded. The ligament plate is more or less arched. The exterior has well developed, dense, irregular growth lines. The umbone is broad and somewhat flattened.

The periostracum is thick, dark chestnut brown in colour, and is smooth and dull, with no periostracal hairs and no byssal endplates. The umbonal region is generally eroded in half-grown and larger specimens. The hinge is toothless, with the anterior hinge margin strengthened to a buttress along the valve edge and protruding ventrally. Posteriorly, the buttress does not abruptly end, but gradually passes into the subligamental shell ridge. The ligament is opisthodetic, strong, and extends to more or less in front of the postero-dorsal corner (depending on the situationof the latter), and ends abruptly without any taper. The subligamental shell ridge is faint, visible along two thirds of ligament length and from both ventral and lateral perspectives. The anterior adductor scar is small and oval, under or just behind the umbone. The posterior adductor scar is a large rounded-oval, united with the long scar of the posterior pedal and byssus retractor muscle. The scar of the anterior bundle of the posterior retractor is not at all or hardly separated from that of the posterior bundle, with the anterior end situated under the posterior third or fourth of the ligament. The anterior byssus retractor scar is in the posterior part of the umbonal cavity, well behind the beaks, and is visible only when viewed from posterior and ventrally. The pallial line is only weakly concave in the middle.

The shell without periostracum is a dull whitish colour, whilst the interior is white and slightly nacreous.

The animal is not known, but judging from the muscle scars, it is evident that it has an almost continuous multibundle posterior retractor.

(Cosel, 2002)

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Distribution

Mauritanian slope, 1,000-1,200 m (Cosel, 2002).

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Physical Description

Type Information

Paratype for Bathymodiolus mauritanicus Von Cosel, 2002
Catalog Number: USNM 1068795
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Preparation: Dry
Year Collected: 1994
Locality: Banc d'Arguin, Mauritania, North Atlantic Ocean
Depth (m): 1200 to 1200
Vessel: Peixe de Mar
  • Paratype: Cosel, R. 2002. A new species of bathymodioline mussel (Mollusca, Bivalvia, Mytilidae) from Mauritania (West Africa), with comments on the genus Bathymodiolus Kenk and Wilson, 1985. Zoosystema. 24 (2): 259-271.
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© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology

Source: National Museum of Natural History Collections

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Ecology

Habitat

Depth range based on 1 specimen in 1 taxon.

Environmental ranges
  Depth range (m): 1200 - 1200
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Molecular Biology and Genetics

Molecular Biology

Barcode data: Bathymodiolus mauritanicus

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


There are 16 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.

ACTTTATATATTTTATTAGGTTTGTGATCGGGAATAATTGGTACAAGTTTG---AGGATGTTGATTCGCATTGAGTTAGCTCGTCCTGGTAGCTTTTTAGGTGAT---GACCAGCTTTATAATGTTATTGTAACTGCTCATGCATTGGTTATAATTTTTTTTATAGTTATACCTTTGATGGTAGGCGGTTTCGGAAATTGACTACTTCCTTTAATGATA---GGTTCAATTGATATAATTTTTCCTCGTTTAAATAATCTAAGGTTTTGGTTTTTGCCAGCATCTCTTTTTACTCTTTTGTTGTCTACATTTATTGAGAGAGGCGCTGGGACTGGTTGAACCTTGTACCCTCCGTTATCTTCTTACACTGGGCATAGGGGCCCAGCCGTGGACATGTCTTTA---TTTTCTTTACATTTAGCAGGTGCTTCTTCTATTGGTGGTTCAATTAATTTTTTGACAAGGATGAAGAATATGTCTGTTGAAAGAATGCGAGGGGAGCGGATAGTTTTATTTGTTTGATCCATGGCTGTGACAGCAGTTTTATTATTAGTTTCTTTACCTGTATTAGCAGGA---GGAATCACCATGTTG
-- end --

Download FASTA File

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© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Bathymodiolus mauritanicus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 9
Specimens with Barcodes: 9
Species With Barcodes: 1
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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