Mendicula ferruginosa Forbes 1844
Creators
Description
Mendicula aff. ferruginosa Forbes, 1844
Figs 4 F–G
Material. Five specimens, Off Ras Madrakah, southern Oman, Discovery cruise 211 st. 12719#1, 19°08´N 58°39´E, 3150m, collected P.G. Oliver, 31 October 1994. NMW.Z. 1995.009.19.
Description. To 2 mm in length. Equivalve. Equilateral prosogyrous beaks. Subcircular, posterior margin more narrowly rounded than anterior. Posterior area weakly demarcated by a radial angulation; submarginal sulcus narrow; lunule a slight depression. Hinge with an anterior thickening that in the right valve most developed. Exteriorly with a heavy ferruginous coating.
Remarks. These shells are inseparable from the deep water examples of M. ferruginosa in the Atlantic Ocean (Figs 4 H–I) and the eastern Pacific Ocean (Coan et al., 2000). They are thinner and less heavily coated than the shelf examples. Very similar taxa are M. memorata from SE Australia, M. sudamericana Zelaya, 2010 from the southern Ocean and Thyasira ockelmanni Keuning & Schander, 2010 from the abyssal Norwegian Sea. Variation seen in M. ferruginosa from the NE Atlantic (see Oliver et al., 2010) makes definitive recognition of these species from shell characters uncertain.
Notes
Files
Files
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Thyasiridae
- Genus
- Mendicula
- Kingdom
- Animalia
- Order
- Lucinoida
- Phylum
- Mollusca
- Scientific name authorship
- Forbes
- Species
- ferruginosa
- Taxon rank
- species
- Taxonomic concept label
- Mendicula ferruginosa Forbes, 1844 sec. Oliver, 2015
References
- Forbes, E. (1844) Report on the Mollusca and Radiata of the Aegean Sea, and on their distribution, considered as bearing on geology. Reports of the British Association for the Advancement of Science, 1843, 130 - 193.
- Zelaya, D. G. (2010) New species of Thyasira, Mendicula, and Axinulus (Bivalvia, Thyasiroidea) from Sub-Antarctic and Antarctic waters. Polar Biology, 33, 607 - 616.
- Keuning, R. & Schander, C. (2010) Thyasira ockelmanni (Mollusca: Bivalvia: Veneroidea), A new species of Thyasiridae from the Norwegian Sea. Fauna norvegica, 30, 21 - 24.
- Oliver, P. G., Holmes, A. M., Killeen, I. J. & Turner, J. A. (2010) Marine Bivalve Shells of the British Isles (Mollusca: Bivalvia). Amgueddfa Cymru - National Museum Wales. Available from: http: // naturalhistory. museumwales. ac. uk / britishbivalves (accessed 28 May 2015)