FIG. 8 in The genus Mercuria Boeters, 1971 in France (Gastropoda: Caenogastropoda: Hydrobiidae). West-European Hydrobiidae, Part 13

FIG. 8. — Mercuria similis (Draparnaud, 1805): A-E, France, Gard, between Saint-Gilles and Aigues-Mortes, Étang de Scamandre (BOE 0534); A, shell; B, C, ♂ head and foot with copulatory organ exposed through slit in mantle, dorsal (B) and ventral view (C); D, E, ♀; D, shell (partially broken away); E, body lumen opened to show renal oviductus with receptaculum seminis (rs1) and bursa copulatrix surrounded by intestinal section (partially removed); F, G, France, Pyrénées- Orientales, Salses, Fontaine-de-Salses: Font Estramar; F, BOE 2167 ex 0281b, shell; G, ♂, BOE 0513, shell partially broken away and mantle slitted to expose copulatory organ. Abbreviations: bc: bursa copulatrix; in, intestine; op, operculum; pe, penis; ro, renal oviductus; rs1, single receptaculum seminis; wc, wall of mantle cavity. Scale bar: 1 mm.