Fig. 8 in Morphology and taxonomic assessment of eight genetic clades of Mercuria Boeters, 1971 (Caenogastropoda, Hydrobiidae), with the description of five new species

Fig. 8. Shells and operculum of Mercuria tachoensis (Frauenfeld, 1865). A–B. Spring at Saô Mamede, Leiria, Portugal. C. Oude Maas at Hoogvliet, Netherlands. D. Das Mouras Spring, Alpedriz, Leiria, Portugal. E. Arun Banks, Burpham, West Sussex, United Kingdom. F. Spring at Vale de Lobos, Almargem do Bispo, Lisboa, Portugal. G–I. Spring at Jardim da Sereia, Coimbra, Portugal. H. Operculum, inner side. I. Operculum, outer side.