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Figures 2-4. 2 in Two new species of the genera Islamia and Mercuria (Gastropoda, Hydrobiidae) from Morocco

Figures 2-4. 2: shell of Islamia karawiyiensis n. sp., 3: shell of Mercuria atlasica n. sp., 4: male copulatory organ. Abbreviations: e: eye, p: penis, pl: penial lap, s: snout.

FIG. 10 in The genus Mercuria Boeters, 1971 in France (Gastropoda: Caenogastropoda: Hydrobiidae). West-European Hydrobiidae, Part 13

FIG. 10. — Mercuria meridionalis (Risso, 1826): A-C, France, Nice (?) (MNHN-RIO, paralectotypes, MNHN-IM-2000-32540); A, B, 2 ♂: 2 shells, one of them belongs to the soft parts of Fig. 13C; C, ♂, double magnification compared to shells: view of soft parts showing copulatory organ, head and foot [Giusti separated soft parts of 1 ♀ and 2 ♂ from the shells of 3 paralectotypes but did not attribute each soft body to its shell; he stated only that the female soft body belongs to the largest shell; thus the figured ♂ soft body belongs to one of the two smaller shells of Fig. 13A, B; D, E, ♂, France, Bouches-du-Rhône, at road from La Fareles-Oliviers to Saint-Chamas between Mas Suriane and Mas Moyroux (BOE 3205 ex 0262); D, shell; E, copulatory organ exposed through slit in mantle (shell partially removed). Abbreviations and scale bars, see continuation page 21.

FIG. 7 in The genus Mercuria Boeters, 1971 in France (Gastropoda: Caenogastropoda: Hydrobiidae). West-European Hydrobiidae, Part 13

FIG. 7. — Mercuria anatina (Poiret, 1801): A-F, the Netherlands, Biesbosch (BOE 0271); A, B, ♂; A, shell with partially retracted animal; B, head with copulatory organ exposed through slit in mantle; C, D, ♂: head with copulatory organ, dorsal (C) and ventral view (D); E, F,♀; E, shell; F, body lumen opened to show renal oviductus with receptaculum seminis (rs1) and bursa copulatrix surrounded by intestinal section (partially removed); G, the Netherlands, Oude Maas at Hoogvliet (BOE 0133): shell. 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.

FIG. 4 in The genus Mercuria Boeters, 1971 in France (Gastropoda: Caenogastropoda: Hydrobiidae). West-European Hydrobiidae, Part 13

FIG. 4. — Mercuria sarahae sarahae (Paladilhe, 1869), France, Loire-Inférieure, Thouaré-sur-Loire, river Loire (BOE 1478 ex SMNS-FAL); A-C, ♂; A, shell; B, C, head and foot with copulatory organ exposed through slit in mantle, ventral (B) and dorsal view (C); D, E (♀); D, shell; 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; fp, fecal pellet; in, intestine; op, operculum; pe, penis; ro, renal oviductus; rs1, single receptaculum seminis. Scale bar: 1 mm.

FIG. 1 in The genus Mercuria Boeters, 1971 in France (Gastropoda: Caenogastropoda: Hydrobiidae). West-European Hydrobiidae, Part 13

FIG. 1. — UTM squares with finding sites (for details see under "Material"). At the Atlantic coast: 4 ■, Mercuria bayonnensis (Locard, 1894); 2, M. baudoniana (Gassies, 1859); 4 ●, M. sarahae (Paladilhe, 1869); 1, M. anatina (Poiret, 1801). At the Mediterranean coasts: 6 ●, M. similis (Draparnaud, 1805); 4, M. meridionalis (Risso, 1826); 1 ■, M. corsensis n. sp.

FIG. 3. — A-E in The genus Mercuria Boeters, 1971 in France (Gastropoda: Caenogastropoda: Hydrobiidae). West-European Hydrobiidae, Part 13

FIG. 3. — A-E, Mercuria bayonnensis (Locard, 1894): A, lectotype of Bythinia [sic] bayonnensis, France, Pyrénées-Atlantiques, Lac de la Négresse près Bayonne (Biarritz) (MHNG-BGT 4943a); B, C, France, Pyrénées-Atlantiques, Biarritz, source dans la falaise, leg. Letellier 1949 (MNHN); B, cleaned; C, specimen with camouflage, front view and back view; D, E, paralectotype (?) of Bythinia [sic] baudoniana Gassies, 1859 (MNHN-PAS ex de Folin), allegedly: Gironde, Le Teich; E, de Folin's label ["ex auctore ipso"]; F-K, Mercuria baudoniana (Gassies, 1859); F-H, syntypes of Bythinia baudoniana, France, Gironde, Le Teich, fossés de la Grande Lande voisins des près salés (MNHN); F, lectotype (MNHN-IM-2000-32542); G, paralectotype; H, Gassies' label; I-K, lectotype of Amnicola lanceolata (Paladilhe, 1869), France, Pyrénées-Atlantiques, Saint-Jean-de-Luz (MHNG-BGT 5437); J, K, Bourguignat's labels on the tube of the holotype. Scale bar: 3 mm. All reproductions of labels in this and the following figures are in natural size.

FIG. 14 in The genus Mercuria Boeters, 1971 in France (Gastropoda: Caenogastropoda: Hydrobiidae). West-European Hydrobiidae, Part 13

FIG. 14. — Pseudamnicola sp., France,Pyrénées-Orientales,Salses, ditch at path from Route nationale to Fontdame (BOE 0998), (juvenile ♂): A, shell (partially destroyed); B, copulatory organ exposed through slit in mantle. Abbreviations: op, operculum; pe, penis. Scale bar: 1 mm.

FIG. 9. — A-C in The genus Mercuria Boeters, 1971 in France (Gastropoda: Caenogastropoda: Hydrobiidae). West-European Hydrobiidae, Part 13

FIG. 9. — A-C, Mercuria similis (Draparnaud, 1805): A, "Gallia mer.[idionalis]", most likely Montpellier (NMW-FRD/1 neotype of Cyclostoma simile: lectotype of Amnicola confusa (cleaned); B, Dupuy's label; C, France, Bouches-du-Rhône, Saintes-Maries-de-la-Mer, ditch NW of the village, leg. G. and M. Falkner 15.VI.2002 (Coll. P. GlÖer); D-H, Mercuria meridionalis (Risso, 1826): D, E, syntypes of Bithynia meridionalis, France, Alpes-Maritimes, most likely Nice (MNHN-RIO); D, lectotype ♀ (MNHN-IM-2000-32539); E, paralectotype (MNHN-IM-2000-32540), ♂; F, France, Alpes-Maritimes, Nice, large ♀ (MNHN ex Caziot); G, H, portable case of a Trichoptera-larva with several specimens of Mercuria meridionallis, Belgrandia varica (J. Paget, 1854), and a taxonomically problematic Valvata sp., glued living on it, Fossés du Var près Nice, leg. G. de Mortillet 1851 (MNHN); H, de Mortillet's label. Scale bars: 3 mm.

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.

FIG. 11. — A-C in The genus Mercuria Boeters, 1971 in France (Gastropoda: Caenogastropoda: Hydrobiidae). West-European Hydrobiidae, Part 13

FIG. 11. — A-C, Mercuria meridionalis (Risso, 1826), France, Var, Foux de Draguignan, leg. Boeters 27.IX.1969, BOE 2414 ex 0261 (A, B); BOE 2151 ex 0261 (C); A, ♀; B, ♂; C, ♂, pallial tentacle, copulatory organ and pedal lobe clearly to be seen; D, E, Mercuria sp., presumable topotypes of Bithinia [sic] moutonii Dupuy, 1849; D, France, Alpes-Maritimes, Cannes (i.e. Mandelieu-la-Napoule [Népoule sensu Dupuy]), ♀ (MNHN-LOC); E, France, Var, Grasse (MNHN-JOU); F, Mercuria corsensis n. sp. France, Corse-du-Sud, Bonifacio, Couvent de la Trinité, leg Boeters IX.1979 (holotype MNHN-IM-2000-31951 ex BOE 0916); G-H, Mercuria zopissa (Paulucci, 1882), Italy, Sardinia, Monte dei Sette Fratelli, leg Giusti, Topotypes ex SMF 252038/7; G, globular shell; H, slender shell; I-J, Pseudamnicola emiliana (Paladilhe 1869); I, Neotype ex Topotype; France, Hérault, ruisseau [d'eaux douces] près de Balaruc (MNHN-IM-2000-32541 ex de Folin); J, de Folin's label ["determ. par Paladilhe", handwriting de Folin]. Scale bars: A, B, D-I, 3 mm; C, 1 mm.

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.

FIG. 5 in The genus Mercuria Boeters, 1971 in France (Gastropoda: Caenogastropoda: Hydrobiidae). West-European Hydrobiidae, Part 13

FIG. 5. — Mercuria sarahae vindilica (Paladilhe, 1870), France, Morbihan, Locmaria [Belle-Île-en-Mer] (BOE 1448); A, B, ♂; 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, F (♀); E, shell; F, 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. Scale bar: 1 mm.

Fig. 32 in Morphology and taxonomic assessment of eight genetic clades of Mercuria Boeters, 1971 (Caenogastropoda, Hydrobiidae), with the description of five new species

Fig. 32. Comparison among original descriptions of Mercuria emiliana (Paladilhe, 1869), M. balearica (Frauenfeld, 1865), M. maceana (Paladilhe, 1869) and Amnicola lanceolata Paladilhe, 1869 taken from Paladilhe (1869). Red lines remark the colour of the shells and operculum according to the author's criterion.

Fig. 30 in Morphology and taxonomic assessment of eight genetic clades of Mercuria Boeters, 1971 (Caenogastropoda, Hydrobiidae), with the description of five new species

Fig. 30. Radula of the Mercuria veronicae Miller, Khalloufi & Delicado sp. nov. from El Waha Spring, Tozeur. A. General view of the radular ribbon. B. Overview of radular teeth rows. C. Detailed view of the central teeth. D. Detailed view of the outer marginal teeth.

Fig. 28 in Morphology and taxonomic assessment of eight genetic clades of Mercuria Boeters, 1971 (Caenogastropoda, Hydrobiidae), with the description of five new species

Fig. 28. Anatomy of Mercuria lupiaensis Miller & Delicado sp. nov. from Giammateo Creek, Frigole, Lecce. A–B. Female genitalia indicating the seminal receptacle (Sr). C–D. Penis. E. Head of a male. F. Prostate gland. G. Ctenidium and osphradium. H. Stomach. I. Head with perioesophageal ring attached.

Fig. 31 in Morphology and taxonomic assessment of eight genetic clades of Mercuria Boeters, 1971 (Caenogastropoda, Hydrobiidae), with the description of five new species

Fig. 31. Anatomy of the Mercuria veronicae Miller, Khalloufi & Delicado sp. nov. from Spring El Waha, Tozeur, Tunisia. A. Head. B. Ctenidium and osphradium. C. Stomach. D. Head of a male. E. Penis. F. Prostate gland. G. Head with perioesophageal ring attached. H. Perioesophageal ring.

Fig. 25 in Morphology and taxonomic assessment of eight genetic clades of Mercuria Boeters, 1971 (Caenogastropoda, Hydrobiidae), with the description of five new species

Fig. 25. Anatomy of Mercuria felixi Miller, García-Guerrero & Ramos sp. nov. from the stream in Canuto de la Tala, Cádiz, Spain. A–B. Female genitalia. C. Prostate gland. D. Penis. E. Animal and penis. F. Ctenidium and osphradium. G. Stomach. H. Perioesophageal ring.

Fig. 26 in Morphology and taxonomic assessment of eight genetic clades of Mercuria Boeters, 1971 (Caenogastropoda, Hydrobiidae), with the description of five new species

Fig. 26. Shells and operculum of Mercuria lupiaensis Miller & Delicado sp. nov. A–B. Holotype (MNCN 15.05/200123H), frontal and lateral views. C–D. Paratypes (MNCN 15.05/200123P). C–D, G–H. Specimens from Giammateo Creek, Frigole, Lecce. E. Specimen from the spring in Torre Castiglione, Ionian Coast, Porto Cesareo, Apulia (UGSB 16237). F. Specimen from Palude del Capitano Pond, San Isidoro, Ionian coast, Nardò, Apulia (UGSB 16236). G. Operculum, inner side. H. Operculum, outer side.

Fig. 23 in Morphology and taxonomic assessment of eight genetic clades of Mercuria Boeters, 1971 (Caenogastropoda, Hydrobiidae), with the description of five new species

Fig. 23. Shells and operculum of Mercuria felixi Miller, García-Guerrero & Ramos sp. nov. from the stream in Camuto de la Tala, Cádiz, Spain. A–B. Holotype (MNCN 15.05/200176H), frontal and lateral views. C–H. Paratypes (MNCN 15.05/94754). G. Operculum, inner side. H. Operculum, outer side.

Fig. 22 in Morphology and taxonomic assessment of eight genetic clades of Mercuria Boeters, 1971 (Caenogastropoda, Hydrobiidae), with the description of five new species

Fig. 22. Anatomy of Mercuria carrillorum Miller, García-Guerrero & Ramos sp. nov. from the stream in Canuto de las Palas, Cádiz, Spain. A–B. Female genitalia. C–D. Penis. E. Penis and head. F. Prostate gland. G. Ctenidium and osphradium. H. Stomach. I. Perioesophageal ring.