Nervous system and female genitalia of Myrtoessa hyas gen. n., sp. n. A Nervous system B–C Female genitalia. Scale bar 0.25 mm. Abbreviations are given in the Material and Method section.

  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.