Tandonia nigra. A–D sequenced topotype NMBE 569047, genital organs A situs of genitalia B penis with epiphallus showing the granulation on the epiphallial surface and the penis papilla C epiphallus opened to show the transparent globuli D vagina opened showing the torus with the row of spikes E sequenced specimen NMBE 568980, situs of genitalia. Abbreviations: a = atrium; bc = bursa copulatrix; ep = epiphallus; fod = free oviduct; p = penis; ped = pedunculus; pp = penial papilla; spo = spermoviduct; v = vagina; vd = vas deferens; vg = vaginal gland.

 
 
  Part of: Schallenberg VM, Heim R, Schneppat UE, Müller P, Rüetschi J, Neubert E (2022) Revision of the family Milacidae from Switzerland (Mollusca, Eupulmonata, Parmacelloidea). ZooKeys 1116: 149-179. https://doi.org/10.3897/zookeys.1116.82762