Chondrina megacheilos (De Cristofori & Jan, 1832 )

Kokshoorn, Bas & Gittenberger, Edmund, 2010, Chondrinidae taxonomy revisited: New synonymies, new taxa, and a checklist of species and subspecies (Mollusca: Gastropoda: Pulmonata) 2539, Zootaxa 2539 (1), pp. 1-62 : 30

Chondrina megacheilos (De Cristofori & Jan, 1832) , C. multidentata ( Strobel, 1851) and C. burtscheri Falkner & Stummer, 1996

Notes.—These species are distributed in the southerns Alps ( Nordsieck 1962) and might be sister-species according to the DNA data. The shell characters suggest that the northern alpine (Austrian) C. burtscheri Falkner & Stummer, 1996 , is also closely related to C. megacheilos . It was described as a subspecies of that polytypic species. The three individuals that were studied in the molecular analysis gave conflicting results: two specimens came out amidst C. avenacea and one clustered with C. multidentata . Since C. burtscheri occurs in a mixed population with C. avenacea , we hypothesize that either contamination, or hybridisation and subsequent mitochondrial introgression might have obscured the factual phylogenetic relationships in this case. Further investigations are necessary here.