Penis (dorsal surface), T. infernalis, USNM 1248362. Scale bar: 500 µm. Db distal bulb Pa distal papilla Pd penial duct.

 
 
  Part of: Hershler R, Liu H-P, Simpson JS (2015) Assembly of a micro-hotspot of caenogastropod endemism in the southern Nevada desert, with a description of a new species of Tryonia (Truncatelloidea, Cochliopidae). ZooKeys 492: 107-122. https://doi.org/10.3897/zookeys.492.9246