MolluscaBase source details
Pilsbry, H. A. (1904). A new subspecies of Polygyra tridentata. The Nautilus. 17(12): 142-143.
349939
Pilsbry, H. A.
1904
A new subspecies of <i>Polygyra tridentata</i>
The Nautilus
17(12): 142-143
Publication
Polygyra tridentata discoidea Pilsbry, 1904 accepted as Triodopsis discoidea (Pilsbry, 1904) (original description)