FIGURES 2–22. Shells of Iglica, Costellina, Lanzaia and Moitessieria. 2–6. Iglica cf. forumjuliana (Pollonera, 1887), cave Matešića pećina, Matešići, Slunj, Croatia; ZMUJ2114– ZMUJ2115, ZMUJ2202–ZMUJ2204. 7–10. I. cf. hauffeni (Brusina, 1886), Babja luknja near Goričane, Slovenia; ZMUJ2105–ZMUJ2106, ZMUJ2205–ZMUJ2206. 11–12. I. cf. gracilis (Clessin, 1882), Slovenia. 11. Obrežje, river Sava; ZMUJ2110. 12. Terme Čatež, Čatež ob Savi, river Sava; ZMUJ2108. 13–14. Iglica hellenica Falniowski et Sarbu, 2015, Melissotrypa Cave, Thessalia, Greece: 13. Holotype MZUJ2107. 14. Paratype, MZUJ2209, destroyed for DNA extraction. 15–18. Costellina turrita Kuščer, 1933, spring of river Jadro, Solin, Split, type locality: 15. MZUJ2128. 16. MZUJ2211. 17–18. Teloconch sculpture. 19–20. Lanzaia bosnica Bole, 1970, young specimens, Dabarska Pećina, Dabar, Bosnia and Herzegovina; ZMUJ2124. 21–22. Moitessieria sp., gravel bar, river Arga, Akerreta, Pamplona, Spain; ZMUJ2116–21117. Scale bar 1 mm for the shells, 200 µm for fig. 17 and 100 µm for fig. 18.