[2] This species is native to the eastern coasts of North and Central America, from Canada to Panama.

[clarification needed] They vary depending on their exact location being in sea grass or in rocks.

The immature phase is where it is in the larval stage and has no need to start sexual reproduction but shows a slight rise on the right side of the neck where the phallus will later grow.

Soon after, it will have developed a full phallus and be deemed a male, where it can start the sexual reproduction process and fertilize its female counterparts.

The smaller males have greater mobility which allows them to mate more and increase reproductive capacity for the species in a given area.

[4] The genetic structure of Crepidula convexa differs distinctively based on the location of the species.