Arcuatula senhousia (Benson, 1842)
Mytiloidea : Mytilidae | Non-native |
| Tebble name: | |
| Smith & Heppell name: |
To size: To 40mm. Shell Structure: Thin, fragile. Equivalve: Equivalve. Equilateral: Inequilateral, beaks to the extreme anterior. Tumidity: Fairly tumid. Outline: Modioliform, wedge-shaped; antero-dorsal margin straight, gently sloping to broadly rounded posterior margin. Ventral margin straight. Anterior margin acutely rounded, protruding in front of and below beaks.
Sculpture: No sculpture, smooth shell. Margin: Smooth. Ligament: Thin brown band, 2/3rds the length of antero-dorsal margin. Hinge: Edentulous, but with 10-12 small, sloping teeth behind leigament. Pallial Musculature: Obscure. Colour: Green with brown zigzags and stripes. The stripes give the appearance of ribs.
Distribution & Ecology
Outside its natural range it is recorded in BRitish Columbia, Canada and southwards to Mexico. Also recorded in New Zealand, Australia, MEditerranean, Bay of Biscay, Netherlands and now UK.
First recorded in the UK in the Solent (discovered in 2017) by Barfield et al (2018), this records has since been superceded by Worsfold et al (2020) with previously unpublished survey records from 2011 in Southampton Water.
Depth Range
Additional Information & Related Species
Related Species
Mytiloidea : Mytilidae
References
Listed are literature citing Arcuatula senhousia (Benson, 1842). Reference containing the species Type Description is highlighted.
|
Barfield P., Holmes A.M., Watson G. & Rowe G. 2018. First Evidence of Arcuatula senhousia (Benson, 1842) the Asian date Mussel in UK waters. Journal of Conchology. 42(2): 217-222. |
|
Benson W.H. in T. Cantor 1842. General features of CHusan, with remarks on the flora and fauna of that island. The Annals and Magazine of Natural History. series 1 9(60): 489. |
|
Worsfold T.M., Pennisi N. & Ashelby C.W. 2020. Theora lubrica Gould, 1861 (Bivalvia: Semelidae), new to the U.K. with notes on associated non-native species and an earlier date of introduction for Arcuatula senhousia (Bivalvia: Mytilidae) to the U.K.. Journal of Conchology. 43(6): 665-674. |
Resources
- Conchological Society
of Great Britain & Ireland
Provides resources for understanding, identifying, recording, and conserving molluscs - CLEMAM
Check List of European Marine Mollusca - MarLIN
The Marine Life Information Network for Britain and Ireland (MarLIN) provides information for marine environmental management, protection and education. It is a centre of excellence in spatially based and time-series marine biological information and supports good stewardship in the marine environment. - NBN Gateway
National Biodiversity Network's Gateway. Use it to explore UK biodiversity data, as contributed by participating data providers. - BivAToL
- MarBEF
- Malacological Society
- Unitas Malacologica
- Census of Marine Life
- MarBEF
MarBEF, a network of excellence funded by the European Union and consisting of 94 European marine institutes, is a platform to integrate and disseminate knowledge and expertise on marine biodiversity, with links to researchers, industry, stakeholders and the general public.
Image Gallery
