Cochlostoma Jan, 1830 revised: an overview of the subgenus Turritus Westerlund, 1883 and its species (Caenogastropoda, Cochlostomatidae) Author Zallot, Enrico 365E17AD-6938-4364-A526-F1BDA2663E10 Per Ligont 1, 33070 Budoia, Italy. ezallot@gmail.com Author Kamchev, Panche 9FA2BE01-3355-4340-B57C-9E2841D5E4C2 Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, the Netherlands. panekamchev@gmail.com Author Schilthuizen, Menno 683D0AB7-CDD8-4FAA-94B6-436F3BFB8873 Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, the Netherlands. & Taxon Expeditions, Rembrandtstraat 20, 2311 VW Leiden, the Netherlands. menno.schilthuizen@naturalis.nl Author Fehér, Zoltán E801EC76-8B1E-450B-993E-BBBE57C00EA9 WWF Hungary, Álmos vezér útja 69 / A, 1141 Budapest, Hungary. feher.zoltan.nhmus@gmail.com Author Mattia, Willy De C74A049D-9D7B-4A1F-878B-5BDFD104219F Central Research Laboratories, Burgring 7, 1010, Vienna, Austria; Department of Evolutionary Biology, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria. wdemattia@gmail.com Author Gittenberger, Edmund D786C279-FC92-4D08-AF16-F79A9705E0AE Naturalis Biodiversity Center, P. O. Box 9517, 2300 RA Leiden, the Netherlands. egittenberger@yahoo.com text European Journal of Taxonomy 2024 2024-03-21 927 1 163 https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2475/11013 journal article 10.5852/ejt.2024.927.2475 2118-9773 10853688 B6E43365-FACA-49BA-8CCD-77E4BF8F0016 Cochlostoma ( T. ) montanum ( Issel, 1866 ) Figs 55 (green dots), 56H, 60–61 Pomatias patulum var. montanus Issel, 1866: 29 . Types Not seen. Other specimens ITALY • 1- Mt Pania della Croce top (topotypical); 44.0365° N , 10.323° E ; 2015; Scarlassara leg.; Scarlassara 97 • 2- Pania della Croce ; 44.0249° N , 10.2969° E ; 2011; Zallot leg.; EZ1059 • 3- Passo Del Vestito ; 44.0656° N , 10.2248° E ; 2009; Margelli leg.; EZ0785 • 4- tunnel del Cipollaio ; 44.0509° N , 10.2649° E ; 2011; Hallgass leg.; EZ1086 • 5- Fosciomboli-Foce di Moscetta ; 44.0419° N , 10.2855° E ; 2011; Hallgass leg.; EZ1087 • 6- Via Arni ; 44.0585° N , 10.2630° E ; 2011; Hallgass leg.; EZ1088 • 7- Turrite Secca 1; 44.0621° N , 10.2891° E ; 2015; Scarlassara leg.; Scarlassara-84 • 8- Turrite Secca 3; 44.0932° N , 10.3856° E ; 2015; Scarlassara leg.; Scarlassara-76 . Type locality ITALY • “sulla sommita’ della Pania della Croce” ( Top of Mount Pania della Croce , Lucca, Toscana ) . Description SHELL . Closely spaced riblets on last part of protoconch. Teleoconch with two lines of reddish spots on whorls. Moderately strong, some whitish and quite narrowly spaced ribs becoming weaker approaching aperture. Moderately weak lip with gently inwardly curved columellar lobe covering umbilicus. MEASUREMENTS . 17 ♀♀ : whorls= 7.7–10, H = 7.4–9.1 mm , H/W= 2.6–3.4, roundness= 0.15–0.2, ribs incl.= 56–66.2°, apert. incl.= 15.4–27.6°, ribs/mm 1 st wh.= 8–19, ribs/mm 4 th wh.=7–17. FEMALE GENITAL ORGANS . As in C . ( T .) elongatum . Remarks A horn-brown form with homogeneous ribbing has been found on the summit of Pania della Croce, the type locality of C. montanum ( Issel, 1866 ) . Therefore, we can identify it with this species. Some populations are doubtfully assigned to C. ( T. ) montanum because of differences in the ribbing of the shell. However, more morphological, molecular and distributional data of the different types are needed.