共找到 3 筆符合的資料
-rostrum and pseudo-antirostrum rounded, small, all about the same sizes. Excisura and pseudo-excisura wide.....more
-antirostrum rounded, small, about the same sizes. Excisura and pseudo-excisura wide. Notch deep. 中文 館藏代碼.....more
of sexual dimorphism. The females are larger in sizes than males, and only females construct shells.....more
