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. ) affine ( Benoit, 1881 ) Figs 97 (red dot), 98E, 99 Pomatias affinis Benoit, 1881: 154 . Types Not seen. Other specimens ITALY • 1- Isnello (topotypical); 37.9289° N , 14.0131° E ; 2010; Liberto leg.; EZ1016 . Type locality ITALY • “ Madonie ” (mountain range located on the north of Sicily ) . Description SHELL . Closely spaced riblets on last part of th protoconch. Teleoconch spotless. Very strong, widely spaced white ribs not fading toward aperture. Whorls more or less covered by whitish powder. Rather weak lip with slightly and gently inwardly bent columellar lobe partially covering umbilicus. MEASUREMENTS . 2 ♀♀ : whorls= 8.1–8.1, H = 8.2–8.5 mm , H/W= 2.78–2.8, roundness= 0.15–0.15, ribs incl.= 57–59°, apert. incl.= 17–19°, ribs/mm 1 st wh.= 3–4, ribs/mm 4 th wh.=5–5. FEMALE GENITAL ORGANS . As in C . ( T .) nanum . Remarks Shells of this species are distinguishable from C. ( T. ) agriotes / crosseanum only by the stronger ribs. In the obtained phylogenetic trees, this taxon appears in a polytomy with the elegans / nanum cluster on one side and the crosseanum / agriotes on the other. The presence of this species in Sicily is highly important in a paleogeographic perspective (see discussion).