Amauropsina canaliculata ( 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 : 343-344

Amauropsina canaliculata ( Lamarck, 1804)

Fig. 10A–D .

Stratigraphic and geographic range.—Middle Eocene, Lutetian–Bartonian (Auversian) (PB, HB).

Colour pattern description.—The pattern consists of three levels of residual colouration: a dark and homogeneous background, a pale apex and small fluorescent patches ( Fig. 10A–C ). The small patches are of variable size and shape and present an irregular distribution ( Fig. 10B 1 , C). There is doi:10.4202/app.2009.0084

intraspecific variability in the density and coalescence of the patches. The coalescence sometimes produces fluorescent sinuous axial segments ( Fig. 10D ).

Figures

Fig. 10. Species of the genus Amauropsina Bayle in Chelot, 1885, under UV light. A. Amauropsina canaliculata (Lamarck, 1804), MNHN A30469 (MNHN coll.), Grignon, Yvelines, France, Lutetian, in dorsal view. B. Amauropsina canaliculata (Lamarck, 1804), MNHN A30468 (MNHN coll.), Grignon in ventral (B1) and dorsal (B2) views. C. Amauropsina canaliculata (Lamarck, 1804), MNHN J02165 (Cossmann coll.), Grignon, in dorsal view. D. Amauropsina canaliculata (Lamarck, 1804), MNHN A30467 (MNHN coll.), Grignon, in apical (D1) and dorsal (D2) views. E. Amauropsina arenularia (Vasseur, 1882), MNHN A30465, Villliers− Saint−Frédéric, Yvelines, France, Lutetian, in ventral (E1) and dorsal (E2) views. F. Amauropsina arenularia (Vasseur, 1882), MNHN A30471 (Vaquez coll.), Saffré (Bois−Gouët), Loire−Atlantique, France, Bartonian, in apical (F1), ventral (F2), and dorsal (F3) views. 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).