Genitalia and anatomy of Wollastonia oxytropis from Pico do Concelho: 188 whole genitalia excluding part of OSD, AG and gonads. Pico do Concelho: 189 section of vagina 190 tip of penial papilla 191 whole genitalia excluding part of OSD, AG and gonads 192 mantle border 193 ornamentation of the inner walls of the flagellum, the penial complex, the vagina and the genital atrium 194 jaw. Scale bars 1 mm.

 
 
  Part of: De Mattia W, Neiber MT, Groh K (2018) Revision of the genus-group Hystricella R. T. Lowe, 1855 from Porto Santo (Madeira Archipelago), with descriptions of new recent and fossil taxa (Gastropoda, Helicoidea, Geomitridae). ZooKeys 732: 1-125. https://doi.org/10.3897/zookeys.732.21677