Cecina manchuricaの類縁関係 Generic Relationships of Cecina manchurica A. Adams
There has been a considerable difference of opinion concerning the proper generic relationships of Cecina manchurica A. Adams. For instance, one classified it as a closely allied group to the genus Truncatella, while the other considered it as a member of Pomatiopsid group. As a result of the morphological comparison carried on the shell, radula and soft part of Cecina and its allied forms, this species seemed to be closely allied to Blanfordia in the following points; 1) smooth shell, 2) olivaceous epidermis, 3) radula, 4) genital organ, 5) respiratory organ. Therefore it is no longer treated as a member of Truncatellid.
動物分類学会誌 3(0), 1-2, 1967