Decapodan

However, no decapodan crustaceans have yet been found in any of the numerous abyssopelagic and bottom samples from depths greater than 6,000 m.

Source: wiktionary

The decapodan crustaceans are a large and diverse group of primarily marine animals.

Source: wiktionary

Based on the different results given by various authors, on personal communications from colleagues and on personal observations, the crucial developmental steps in the formation of the nervous system in decapodan and octopodan cephalopods are reviewed.

Source: wiktionary

The shrimp is, of course, a crustacean, a cousin, many times removed, of the crab and the lobster, and the famous crayfish, of whom Professor Huxley has written so admirably and exhaustively; but we need not dwell on the fact, or generalise him at length into the macrourans and decapodans.

Source: wiktionary