Genus-level revision of the Alycaeidae (Gastropoda, Cyclophoroidea), with an annotated species catalogue

Figure 3.

Female genital anatomy of Alycaeidae A positioning of females during anatomical examination B, C Alycaeus eydouxi Venmans, 1956 (NHMUK 20160702, V142, specimen5) D, E Alycaeus gibbosulus Stoliczka, 1872 (ALY03) F, G Dioryx messageri (Bavay & Dautzenberg, 1900), NHMUK 20140343 H, I Dicharax tokunoshimanus principalis (Pilsbry & Y. Hirase, 1909) HNHM 104428 (2016.10.01B, spec2) J, K Metalycaeus minatoi Páll-Gergely, 2017 HNHM 104427 (2015.12.14A, female28) L, M Stomacosmethis dohrni (O. Boettger, 1893) HNHM 104426 N, O Stomacosmethis balingensis (Tomlin, 1948), HNHM 104425 (2016.07.22A, sp2). Abbreviations: B: bursa copulatrix; H: head; O: ovarium; OV: oviduct; P: trematode parasite (found in the pericardium); PC: pericardium; PO: position of the operculum (operculum removed); R: rectum; RS: receptaculum seminis; S: sole. Upper images of each pair (B, D, F, H, J, L, N) shows the genitalia before removing the rectum (with grey shading). Scale bars: 1 mm. Photograph and drawings: Barna Páll-Gergely.

	Figure 3. Female genital anatomy of Alycaeidae A positioning of females during anatomical examination B, C Alycaeus eydouxi Venmans, 1956 (NHMUK 20160702, V142, specimen5) D, E Alycaeus gibbosulus Stoliczka, 1872 (ALY03) F, G Dioryx messageri (Bavay & Dautzenberg, 1900), NHMUK 20140343 H, I Dicharax tokunoshimanus principalis (Pilsbry & Y. Hirase, 1909) HNHM 104428 (2016.10.01B, spec2) J, K Metalycaeus minatoi Páll-Gergely, 2017 HNHM 104427 (2015.12.14A, female28) L, M Stomacosmethis dohrni (O. Boettger, 1893) HNHM 104426 N, O Stomacosmethis balingensis (Tomlin, 1948), HNHM 104425 (2016.07.22A, sp2). Abbreviations: B: bursa copulatrix; H: head; O: ovarium; OV: oviduct; P: trematode parasite (found in the pericardium); PC: pericardium; PO: position of the operculum (operculum removed); R: rectum; RS: receptaculum seminis; S: sole. Upper images of each pair (B, D, F, H, J, L, N) shows the genitalia before removing the rectum (with grey shading). Scale bars: 1 mm. Photograph and drawings: Barna Páll-Gergely.
	Part of: Páll-Gergely B, Sajan S, Tripathy B, Meng K, Asami T, Ablett JD (2020) Genus-level revision of the Alycaeidae (Gastropoda, Cyclophoroidea), with an annotated species catalogue. ZooKeys 981: 1-220. https://doi.org/10.3897/zookeys.981.53583