Wentletrap
wentletrap
abalone
Ormer
sea lily
abalone
A conch is a tropical marine mollusc with a spiral external shell. An endoskeleton is an internal skeleton, which a conch doesn't have.
Oyster Michele
The shell of a cockle is formed from calcium carbonate, so is inorganic (non-living). The cockle is a small, edible, marine bivalve mollusc.
wentletrap
They have a shell they made themselves and they have a soft inside.
The mollusc with an ear-shaped shell is commonly known as an "ear shell" or "abalone". These marine gastropod molluscs have a flattened shell that resembles the shape of a human ear. They are known for their iridescent inner shell.
Hermit crabs.