Image of ramshorn snails

Description:

Figure 7.Bostryx species. A Bostryx erosus (Broderip in Broderip and Sowerby I 1832), syntype NHMUK 20100612 (H = 22.9) B Bostryx scalariformis (Broderip in Broderip and Sowerby I 1832), probable syntype NHMUK 20100635 (H = 11.6) C Bostryx vilchezi Weyrauch, 1960, paratype NHMUK 1975468 (H = 8.2) D Bostryx rusticellus (Morelet, 1860), lectotype NHMUK 1893.2.4.201 (H = 19.9) E Bostryx guttatus (Broderip in Broderip and Sowerby I 1832), possible syntype NHMUK 20110175 (H = 22.0) F Bostryx pruinosus (Sowerby I, 1833), syntype NHMUK 1975544 (H = 13.48) G Bostryx reentsi (Philippi, 1851), syntype of Bulimus denickei J.E. Gray, 1852, NHMUK 1851.5.15.1 (H = 26.4) H Bostryx compactus (Fulton, 1902), syntype NHMUK 1902.5.28.1 (H = 15.8) I Bostryx albicans (Broderip in Broderip and Sowerby I 1832), possible syntype NHMUK 20100611 (H = 22.1) J Bostryx albus (Sowerby I, 1833), possible syntype NHMUK 1842.5.10.149 (H = 15.0). All enlarged.