Crenobiont, stygophile and stygobiont molluscs in the hydrographic area of the Trebisnjica River Basin Author Falniowski, Andrzej https://orcid.org/0000-0002-3899-6857 Department of Malacology, Institute of Zoology and Biomedical Research, Jagiellonian University, ul. Gronostajowa 9, 30 - 387 Krakow, Poland Author Lewarne, Brian The Devon Karst Research Society, Library & Office, 46, Morley Court, Western Approach, Plymouth, Devon, UK Author Rysiewska, Aleksandra Department of Malacology, Institute of Zoology and Biomedical Research, Jagiellonian University, ul. Gronostajowa 9, 30 - 387 Krakow, Poland Author Osikowski, Artur https://orcid.org/0000-0001-6646-2687 Department of Animal Reproduction, Anatomy and Genomics, University of Agriculture in Krakow, al. Mickiewicza 24 / 28, 30 - 059 Krakow, Poland a.osikowski@urk.edu.pl Author Hofman, Sebastian https://orcid.org/0000-0001-6044-3055 Department of Comparative Anatomy, Institute of Zoology and Biomedical Research, Jagiellonian University, ul. Gronostajowa 9, 30 - 387 Krakow, Poland text ZooKeys 2021 2021-06-28 1047 61 89 http://dx.doi.org/10.3897/zookeys.1047.64034 journal article http://dx.doi.org/10.3897/zookeys.1047.64034 1313-2970-1047-61 835A7E2B82E845B09E3FB8548031A048 23C3761CE1BF5BFAA5301C213FB1D457 Iglicopsis Falniowski & Hofman gen. nov. Type species. Iglicopsis butoti by original designation Diagnosis. Shell ovate-conic with broad and flat apex, transparent, operculum smooth, no pigment, eyes absent, ctenidium present, penis long, tapering, with bi-lobed outgrowth on the left side and flat outgrowth at the right side, unpigmented renal oviduct, bursa copulatrix and two small receptacula seminis. Remarks. Iglicopsis shell resembles that of Montenegrospeum , but is more oval, with broader spire and broader flat apex, sometimes showing scalarity at the body whorl; the penis with the left-side outgrowth located more proximally and bi-lobed and additional flat outgrowth on the right side; the molecular divergence (p = 0.186 for mitochondrial COI and p = 0.114 for nuclear H3) at the genus-level.