However, its shell morphology and life cycle are different, as are the species of host fish with which it is associated.

This family exhibits a great diversity in shell morphology but extremely homogeneous anatomical traits.

Diversity of shell morphology is linked to substantial eco-phenotypic plasticity.

Two species that have similar shell morphology:

Genera are distinguished on the basis of shell morphology and characteristics of the suture.

The proportional size of the body whorl in gastropod shells differs greatly according to the actual shell morphology.

As with other species of ambersnail, it is distinguished by slight differences in shell morphology.

The shell morphology is very variable, with some individuals totally lacking spines.

They have a shell morphology that is mostly evolute, typically with biplicate, simple, or triplicate ribbing.

There is a large range of shell morphologies, including a distinct morph in Lake Erie that is pale or completely white.