Figure 19 from: Fehér 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

Figure 19 - A Montenegrina hiltrudae hiltrudae Nordsieck, 1972, holotype, SMF 221046 B Montenegrina hiltrudae costulata Erőss & Szekeres, 2006, holotype, HNHM 94893 C Montenegrina hiltrudae dennisi Gittenberger, 2002, paratype, SMF 331782 D Montenegrina hiltrudae densicostulata Nordsieck, 1974, holotype, SMF 227686 E Montenegrina hiltrudae desaretica ssp. n., holotype, NHMW 111250 F Montenegrina hiltrudae fusca Fehér & Szekeres, 2006, holotype, HNHM 94895 G Montenegrina hiltrudae maasseni Gittenberger, 2002, paratype, SMF 331784 H Montenegrina hiltrudae protruda Gittenberger, 2002, paratype, SMF 331780 I Montenegrina hiltrudae robusta Nordsieck, 2009, SMF 328778 J Montenegrina hiltrudae sattmanni Nordsieck, 1988, holotype, NHMW 84028 K Montenegrina hiltrudae selcensis ssp. n., holotype, NHMW 111216 L Montenegrina minuscula Erőss & Szekeres, 2006, holotype, HNHM 94831. Scale bar: 5 mm