Phylogenetic relationships of the Balkan Moitessieriidae (Caenogastropoda: Truncatelloidea) Author Hofman, Sebastian Author Rysiewska, Aleksandra Author Osikowski, Artur Author Grego, Jozef Author Sket, Boris Author Prevorčnik, Simona Author Zagmajster, Maja Author Falniowski, Andrzej text Zootaxa 2018 2018-09-28 4486 3 311 339 journal article 29534 10.11646/zootaxa.4486.3.5 542a4e4b-bb75-4922-a0c1-5aa93fbdaf4d 1175-5326 1437184 F3D822C1-012D-4C51-BD03-4AE96C10008A Paladilhiopsis (Costellina) turrita (Kuščer, 1933) Figs. 15–18 Costellina turrita Kuščer, 1933a : 64 ; 1933b: 140. Costellina turrita Kuščer, 1933 Kabat & Hershler 1993 . Material examined: MZUJ2128, MZUJ2211 Type species of monotypic genus Costellina Kuščer, 1933 . A unique and very prominent sculpture of the teleoconch, coupled with the occurrence at one locality only, prove that we have studied topotype specimens. Anatomy of this species remains unknown. Molecular and morphological data (see above) confirm its assignment to the genus Paladilhiopsis . This species is known only from its type locality: spring of the river Jadro , Solin , Split , Croatia . The karst spring Jadro has long been the principal water supply source for the Split town and wider surrounding area (> 300,000 inhabitants). Its precise catchment area and boundaries are still unknown despite many investigations. There is some evidence (tracing tests) that an underground connection between the neighbouring Cetina River and the spring exists ( Bonacci 2011). The spring is captured and an access to it is prohibited, which greatly hinders sampling of its fauna. No living specimens have been collected previously ( Jalžić et al. 2011 ), but snails are obviously present in the groundwater as a few empty shells and one live snail were successfully collected with the consent of the local authorities.