Reproductive anatomy of Myrtoessa hyas gen. n., sp. n. A–C Penis D Female genitalia (viewed from the left side) E Shell with an egg capsule into the umbilicus. Scale bars: A, B, D 0.5 mm, C, E 1 mm. Abbreviations are given in the Materials and methods.

  Part of: Radea C, Parmakelis A, Giokas S (2016) Myrtoessa hyas, a new valvatiform genus and a new species of the Hydrobiidae (Caenogastropoda, Truncatelloidea) from Greece. ZooKeys 640: 1-18.