Neithea deshayana (Matheron, 1842)
MATHERON, P. 1842. Catalogue méthodique et descriptif des corps organisés fossiles du Département des Bouches-du-Rhône et lieux circonvoisins. 269 p., pls. 1-41. Carnaud Fils, Imprimeur. Marseille, (Extrait du Répertoire des travaux de la Société de statistique de Marseille, 6: 81-341, pls. 1-41) [p. 184, pl. 29, figs. 11, 12]
1842 Pecten deshayana Matheron, 1842
1847 Janira deshayesiana Orbigny, 1847
1870 Janira euryotis Pictet & Campiche, 1870
1916 Pecten (Neithea) planivalvis Cossmann, 1916
1847 Janira deshayesiana Orbigny, 1847
1870 Janira euryotis Pictet & Campiche, 1870
1916 Pecten (Neithea) planivalvis Cossmann, 1916
P. Matheron, 1842, plate 29.
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« P. testâ ovato-orbiculari, transversâ, supernè rotundatâ, valvâ superiore concavâ radiatâ decem plicatâ, propè auriculas angulatâ, radiis numerosissimis sulcis conformibus transversim substriatis; valvâ inferiore convexâ, incurvato-arcuatâ, subobliquâ, nitidâ, concentrice substriatâ; plicis valvae superioris, radiatis, obscuris, obtusis; auriculis inaequalibus magnis, in valvâ supernâ minutissimè sulcato-striatis; margine cardinali recto, longissimo.
L'intérieur de la valve supérieure présente dix ou douze grandes côtes qui sont accusées au dehors par un égal nombre de côtes plus obtuses. Les oreillettes antérieures sont fort grandes.
Longueur 100 millim.; largeur 100 millim.; hauteur, au dessus du plan de l'ouverture de la valve inférieure, 40 millim. Portl. 31. c. les Martigues, Orgon, St. Chamas etc.» PHILIPPE MATHERON, 1842
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«Synonymy. — MATHÉRON and COSSMANN's names have been given to different preservation states. How far Janira euryotis PICTET et CAMPICHE is a synonym of N. deshayana is difficult to decide. All PICTET specimens are very much smaller; the general shape is similar but the shell appears to be thinner and far less convex. Where the first could be ascribed to the size of the specimens the second is difficult to explain, because in most Neithea-species the convexity decreases when the size increases.
Those differences could be due to slightly different ecological factors; but because of the presence of slight differences it seems preferable to question the synonymy of N. euryotis.» DHONDT, A. V. 1973. Systematic revision of the subfamily Neitheinae (Pectinidae, Bivavia, Mollusca) of the European Cretaceus. Mémoires du Institute Royal des Sciences Naturelles de Belgique, 176: 1-101, pls. 1-5. [p. 65]
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Neithea (Neithea ?) deshayana (P. Matheron, 1842); A. V. Dhondt, 1973, Systematic revision of the subfamily Neitheinae of the European Cretaceus, plate 5, figures 1a, 1b.
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