Different exposures of the lamella inferior. A hidden (M. helvola) B weakly emerged (M. okolensis) C well emerged (M. subcristata).

 
 
  Part of: FehĂ©r Z, Szekeres M (2016) Taxonomic revision of the rock-dwelling door snail genus Montenegrina Boettger, 1877 (Mollusca, Gastropoda, Clausiliidae). ZooKeys 599: 1-137. https://doi.org/10.3897/zookeys.599.8168