No they are not. The definition of a vegetarian diet includes not eating meat, poultry, or seafood. If you really like seafood, try modifying your vegetarian diet to a pescetarian diet. Pesco-vegetarianism allows the consumption of seafood, but not meat or poultry.
Quite obviously crayfish, humans, and many other animals have apendages. Snails, however do not.
crayfish, worms, and snails
snails fruits and insects shrimps or its friend
Shrimps and crabs differ from molluscs by having a chitinous exoskeleton and jointed appendages.
Freshwater crayfish and snails.
You
crayfish eat tadpoles,snails,small fish, and insects.crayfish also eat plants and waterweeds
They use their shells
Yes if the shells get broken otherwise no. I keep crayfish and Tilapia together and crushed some snails for the crayfish to eat, the Tilapia ate them before the crayfish had chance.
this is the answer they are both living things also that they both have external skeletons
oysters, scallops, clams, snails, crabs, crayfish, lobsters, shrimp, krill, barnacles.
Crayfish eat fish, shrimp, water plants, worms, insects, snails, plankton, and more. They will also eat dead plants and animals.