Ampullina depressa depressa ( Lamarck, 1804 )

Caze, Bruno, Merle, Didier, Meur, Mathieu Le, Pacaud, Jean-Michel, Ledon, Daniel & Martin, Jean-Paul Saint, 2011, Taxonomic implications of the residual colour patterns of ampullinid gastropods and their contribution to the discrimination from naticids, Acta Palaeontologica Polonica 56 (2), pp. 329-347 : 331-332

Ampullina depressa depressa ( Lamarck, 1804)

Fig. 2A .

Stratigraphic and geographic range.—Middle Eocene, Lutetian–Bartonian (PB, Loire−Atlantique).

doi:10.4202/app.2009.0084

Colour pattern description.—The pattern consists of three levels of residual colouration. The background is heterogeneous with a fluorescent spiral stripe located just below the subsutural step ( Fig. 2A 1 ). The apex is paler. The diffuse stripe varies in breadth and the whorl is sometimes almost entirely fluorescent (excepting the subsutural step and the base). In the latter case, the stripe may have a different colour (more orange) and is still distinguishable. An additional thin median stripe is seen ( Fig. 2A 2 ) in several specimens.

Figures

Fig. 2. Species of the genus Ampullina Bowdich, 1822, under UV light. A. Ampullina depressa (Lamarck, 1804), MNHN J02192 (Cossmann coll.), Hérouval, Oise, France, Lutetian, in ventral (A1) and dorsal (A2) views. B. Ampullina parisiensis (d’Orbigny, 1850), MNHN A30403 (MNHN coll.), Villiers−Saint−Frédéric, Yvelines, France, Lutetian, in dorsal view. C. Ampullina parisiensis (d’Orbigny, 1850), MNHN B58545 (Lhomme coll.), Chavençon (La Tranchée), Oise, France, Priabonian, in abapertural (C1) and ventral (C2) views. D. Ampullina rustica (Deshayes, 1864), MNHN A30414 (Ledon coll.), Douains, Eure, France, Lutetian, in apical (D1) and dorsal (D2) views. E. Ampullina grossa (Deshayes, 1864), MNHN B58581 (MNHN coll.), Mont−Saint−Martin, Aisne, France, Bartonian (Auversian), in apical view. F. Ampullina chenayensis Cossmann, 1892, MNHN A31127 (Faullummel coll.), Chenay, Marne, France, Thanetian, in labral (F1) and dorsal (F2) views. G. Ampullina aizyensis (Bayan, 1870), MNHN A30408 (Ledon coll.), Bachivillers, Oise, France, Thanetian, in dorsal view. H. Ampullina aizyensis (Bayan, 1870), MNHN A30409 (Ledon coll.), Bachivillers, in ventral (H1) and abapertural (H2) views. I. Ampullina stampinensis (Cossmann and Lambert, 1884), syntype of Natica stampinensis MNHN J05147 (Lambert coll.), Saint−Hilaire (Pierrefitte), Essonne, France, Rupelian (Stampian), in dorsal view. J. Ampullina perusta (Defrance in Brongniart, 1823), MNHN A30821 (MNHN coll.), Ronca, Italy, Lutetian, in ventral (J1) and abapertural (J2) views. K. Ampullina perusta (Defrance in Brongniart, 1823), MNHN A30822 (MNHN coll.), Ronca, in dorsal view. Scale bars 10 mm. Photographs by C. Lemzaouda and P. Loubry (MNHN).

Fig. 1. Descriptive terminology of the residual colour patterns of the Ampullinidae. A. Crommium acutum (d’Orbigny, 1850), MNHN B58618 (MNHN coll.), Parnes, Oise, France, Lutetian, in ventral view. B. Globularia (Cernina) fluctuata (Sowerby, 1825), MNHN IM (Staadt coll.), Banggi Island, Kudat division of Sabah, Malaysia, Recent, in dorsal view. C. Ampullina parisiensis (d’Orbigny, 1850), MNHN A30403 (MNHN coll.), Villiers− Saint−Frédéric, Yvelines, France, Lutetian, in dorsal view. D. Globularia (Deshayesia) parisiensis (Raulin, 1844), MNHN A30892 (Cossmann coll.), Morigny (Château de Brunehaut), Essonne, France, Rupelian (Stampian), in dorsal view. E. Ampullina rustica (Deshayes, 1864), MNHN A30414 (Ledon coll.), Douains, Eure, France, Lutetian, in apical view. F. Ampullina intermedia (Deshayes, 1832), MNHN A30416 (MNHN coll.), Cuise−la−Motte, Oise, France, Ypresian (Cuisian), in dorsal view. G. Ampullina intermedia (Deshayes, 1832), MNHN A30417 (MNHN coll.), Cuise−Lamotte, in labral view. Scale bars 10 mm. Photographs by C. Lemzaouda and P. Loubry (MNHN).