Moreover, a crustacean is an aquatic arthropod of the classCrustacea, which comprises crabs, shrimp, barnacles, lobsters, and freshwater crayfish.
2
A fine species of the classCrustacea, discovered by him, has been described and figured in the Illustrated Proceedings of the Zoological Society.
3
He didn't have time to finish off the classCrustacea through an examination of its stomatopods, amphipods, homopods, isopods, trilobites, branchiopods, ostracods, and entomostraceans.