No, crayfish are invertebrates, as they have an external hard covering, and they do no not suckle their young!
There are several species of crayfish in Australia, including the red claw crayfish, Cherax quadricarinatus and the yabbie, C. destructor. The world's largest crayfish, which can grow to almost 7 pounds, is Astacopsis gouldi, found in Tasmania.
Crayfish
Crayfish are known as both crayfish and yabbies in Australia. "Yabbies" are freshwater crayfish, often found in rivers, creeks and dams in rural areas.
My older crayfish died and my littler crayfish has not yet how do/can they die?
Do crayfish have tarritoris
Crayfish are omnivores.
protects the crayfish
Crayfish are related to small lobsters. Here is a link for pictures of crayfish. http://mackers.com/crayfish/pics.htm
Crayfish are invertebrates.
Crayfish-ess.
the crayfish resembles a lobster
No, a crayfish is not a mollusk. It is an arthropod.