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Shells of Congeria. A shell of (A) Congeria jalzici sp. nov. from Markov Ponor, (B) the ecophenotype of Congeria jalzici sp. nov. from the Lukina Jama-Trojama Cave System, and (C) Congeria mulaomerovici sp. nov. from Oko. 1, right lateral view; 2, dorsal view; 3, ventral view; 4, anterior view; 5, posterior view. (x---y indicates the greatest shell width). Abbreviations: BG - Byssal gape; BN - Byssal notch; L - Ligament; U - Umbo. x-----y equals the greatest width of the shell.
