Gural-Sverlova, N.V. & Gural, R.I. (2010). New taxa of the land molluscs of the genera Chondrula and Brephulopsis (Enidae) from the territory of Ukraine. Ruthenica. 20(1): 1-12. Moskva [14 June]. [in Russian].

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Gural-Sverlova, N.V. & Gural, R.I.

2010

20(1): 1-12. Moskva [14 June]. [in Russian].

Publication

Vol20_1-12_Gural-Sverlova_Gural.pdf 

During the study of the conchological variability of the land molluscs of the genus Chondrula in the south-east part of Ukraine and Crimea was discovered the form with specific structure of the aperture teeth which does not correspond to description of the known conchological forms of the widespread species Ch. tridens. The shells of Ch. tridens martynovi subsp. nov. with well developed aperture teeth are characterized by the following characters: 1) the angular tooth is not limited to the knoll or short comb on the aperture edge but sharply bends down and forms a low fold parallel to the parietal lamella; 2) palatal and suprapalatal teeth fuse to form the single well visible crestform lamella. Shells with incompletely formed teeth can resemble Ch. tridens tridens. The preliminary map of the distribution of Ch. tridens martynovi and Ch. tridens tridens on the territory of Ukraine was compiled on the basis of the materials of the State Museum of Natural History (Lviv). Brephulopsis konovalovae sp. nov. differs from B. bidens in shorter shells, more convex whorls and ribbed surface. The populations of B. konovalovae and B. bidens live sympatrically in the locus typicus in the mountain Crimea and do not form transitional forms.

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