Parent Category Figures
1 Lithopoma americanum 40
2 Lithopoma phoebium 37
3 Lithopoma caelatum 18
4 Lithopoma tuber 14
5 Lithopoma olfersi 8
6 Lithopoma tectum 7
7 Lithopoma brevispinum 2
8 Lithopoma brevispina 1