Original: For the spiny lobster larval phase see Phyllosoma Spiny lobsters, also known as langouste or rock lobsters are a family (Palinuridae) of about 45 species of achelate crustaceans, in the Decapoda Reptantia.
Simplified: Spiny lobsters, also known as rock lobsters are a family (Palinuridae) of about 45 species of   crustaceans, in the Decapoda Reptantia.