FIG. 2 in The genus Mercuria Boeters, 1971 in France (Gastropoda: Caenogastropoda: Hydrobiidae). West-European Hydrobiidae, Part 13

FIG. 2. — Mercuria bayonnensis (Locard, 1894): France, Pyrénées-Atlantiques, Bidart, farm Bassillour, river Ouhabia: Herigoin (BOE 2250 ex 0364); A, shell; B, ♂: head and foot with copulatory organ exposed through slit in mantle; C, D, ♂ head with copulatory organ, ventral (C) and dorsal view (D); E, ♀, body lumen opened to show renal oviductus with receptaculum seminis (rs1) and bursa copulatrix surrounded by intestinal section (partially removed). Abbreviations: bc, bursa copulatrix; in, intestine; op, operculum; pe, penis; ro, renal oviductus; rs1, single receptaculum seminis; vd, vas deferens. Scale bar: 1 mm.