Pinctada imbricata Roding, 1798
Pterioidea : Pteriidae
To size: To 60mm. Shell Structure: Thin valves, fragile margins. Equivalve: Inequivalve. Equilateral: Inequilateral. Tumidity: Compressed. Outline: Circular to quadrangular. Contour: Posterior margin slightly extended.
Sculpture: Scaly often with radial rows of fragile flattened scales. Margin: Smooth, irregular. Ligament: External, sunken one third the length of dorsal margin. Hinge: Edentulous. Pallial Musculature: One central adductor scar. Periostracum: Thin, flaky. Colour: White, turning to purple at the posterior, anterior and ventral margins. The radial scales leave white radial scars behind. Internal sometimes tinged with green.
Distribution & Ecology
3 specimens attached to plastic spool on Chesil Beach, Dorset. 1 shell in a bait pot, Loher Beach, Waterville, Co Kerry.
Additional Information & Related Species
Pterioidea : Pteriidae
Listed are literature citing Pinctada imbricata Roding, 1798. Reference containing the species Type Description is highlighted.
Holmes A.M., Oliver P.G., Trewhella S, Hill R. & Quigley D.T.G. 2015. Trans-Atlantic rafting of inshore mollusca on macro-litter. American molluscs on British and Irish shores, new records.. Journal of Conchology . 42 (1): 41-49.
Roding 1798. Museum Boltenianum sive Catalogus cimeliorum e tribus regnis naturae quae olim collegerat Joa. Fried. Bolten M. D. p. d. Pars secunda continens Conchylia sive Testacea univalvia, bivalvia et multivalvia. 199.
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