Pecten thomasi G. B. Sowerby III, 1897
SOWERBY III, G. B. 1897. On three shells from the collection of Mr. B.C. Thomas, of Brest. Proceedings of the Malacological Society of London, 2: 137-138, pl. 11. [p. 138, pl. 11, fig. 2]
«PECTEN THOMASI, n.sp. PI. XI, Fig. 2.
Testa rotundato-ovalis, tenuis, leviter inflata, aequivalvis, oblique subaequilateralis, costis numerosis (circa 30) irregularibus, Iaevibus planulato-rotundatis instructa, extus dilute purpurascens, flavo tincta, saturate purpureo-fusco late radiata, auriculis mediocris, inaequalibus, fere rectangularibus; pagina interna saturate purpureo-fusca, ad marginem maculis 5 flavis ornata. Long. 70, lat. 65 mm.
A shell of remarkably thin substance for its size, in form and character almost like one of the small hyaline species, such as P. natans, Philippi, but the prevailing colour is dark. The ribs are irregular, some narrow and close, others broader and more distant; the interior of the left valve is very intense purple-brown, relieved at the margin by five regular, well-defined yellow blotches.» GEORGE BRETTINGHAM SOWERBY III, 1897
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G. B. Sowerby III, 1897, plate 11.
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