Ampullaceana intermedia (Lamarck, 1822)

Vinarski, Maxim V., Aksenova, Olga V. & Bolotov, Ivan N., 2020, Taxonomic assessment of genetically-delineated species of radicine snails (Mollusca, Gastropoda, Lymnaeidae), Zoosystematics and Evolution 96 (2), pp. 577-608 : 577

14. Ampullaceana intermedia (Lamarck, 1822) Fig. 7I ; Table 2

Lymnaea intermedia Lamarck 1822: 162.

Limnea intermedia - Michaud 1831: 86, pl. XVI, figs 17, 18.

Limnaeus intermedius - Küster 1862: 12, Taf. 2, figs 21, 22.

Limnaea intermedia - Sowerby 1872: pl. III, fig. 16; Kobelt 1912: 18, Taf. CCCCLXXXVIII, fig. 2602.

Lymnaea peregra - Hubendick 1951: 146, figs 1, 9 (partim).

Lymnaea (Peregriana) intermedia - Kruglov and Starobogatov 1983b: 1468, fig. 2(9); 1993b: 165, fig. 4B; Khokhutkin et al. 2009: 85, fig. 36; Andreeva et al. 2010: 125, fig. 64.

Radix (Peregriana) intermedia - Vinarski and Kantor 2016: 331.

Ampullaceana intermedia - Aksenova et al. 2018a: 4.

TL.

France, Quercy Plateau.

Types.

Most probably lost ( Mermod 1952).

Aksenova et al. (2018a) used the binomen Lymnaea intermedia Lamarck, 1822 to designate a radicine species, sister to A. balthica , which is widely distributed in France and Spain. Since the type specimen, mentioned by Lamarck (1822), is probably lost, we based our understanding of this taxon on examination of both historical samples of it (see, for example, specimen of L. intermedia collected in Lyon, France, in the first half of the 19th century: Fig. 7I ) and some old literary sources, dealing with lymnaeids of Western Europe ( Michaud 1831; Küster 1862; Sowerby 1872; Kobelt 1912).

Conchologically, shells of A. intermedia resemble those of A. balthica , but can be distinguished from the latter by higher spire and less inflated body whorl. Modern European authors do not accept A. intermedia as a valid species ( Glöer 2002; Welter-Schultes 2012), whereas malacologists of the former USSR still mention this taxon as a species closely allied to A. balthica ( Kruglov and Starobogatov 1993b; Khokhutkin et al. 2009; Andreeva et al. 2010; Vinarski and Kantor 2016). The concept of this species proposed by Kruglov and Starobogatov (1983b, 1993b) coincides with that of old European authors ( Michaud 1831; Küster 1862; Sowerby 1872). However, we still do not possess any sequence of A. intermedia from the countries lying east of France and the actual range of this species remains unknown. The Russian authors repeatedly recorded this species from different regions of Russia, including the Urals and Siberia ( Kruglov and Starobogatov 1993b; Khokhutkin et al. 2009; Andreeva et al. 2010), but all these records were based solely on morphological data and need to be confirmed molecularly.

Figures

Figure 7. Shells of species of the genera Ampullaceana and Peregriana. A. Ampullaceana ampla (Austria, Wallersee Lake; NHMW). B. A. ampla (Germany, Neckarsteinach; NHMUK). C. A. balthica (14.12.1946, Denmark, Fureso Lake; ZMUC). D. A. balthica (Sweden, Stockholm; NMG). E. A. dipkunensis (Russia, Arkhangelsk Region, Nyandomka River; LMBI). F. A. dipkunensis, the holotype (07.07.1977, Russia, Krasnoyarsk Territory, Gornoye Lake; ZISP). G. Limneus fontinalis, the lectotype (after Forcart 1957). H. A. fontinalis (18.08.2017, Russia, Rostov Region, Veselovskoye Reservoir; LMBI). I. Limneus intermedius (France, Lyon; NHMW). J. A. lagotis (Russia, Leningrad Region, Lava River near Troitskoye; ZISP). K. A. lagotis (Austria, Buergenland, Bodersdorf; NHMW). L. Peregriana dolgini (Russia, Republic of Buryatia, Kironskiy Spring; RMBH). M. P. peregra (France, from Draparnaud's collection; NHMW). Scale bars: 2 mm (D-F, J, L, M), 5 mm (A-C, H, I, K). G - scale bar absent from the original publication.