Note 123 — Chapter XII · LAMARCK THE ZOÖLOGIST

In his Histoire des Progrès des Sciences naturelles Cuvier takes to himself part of the credit of founding the class Crustacea, stating that Aristotle had already placed them in a class by themselves, and adding, “MM. Cuvier et de Lamarck les en out distingués par des caractères de premier ordre tirés de leur circulation.” Undoubtedly Cuvier described the circulation, but it was Lamarck who actually realized the taxonomic importance of this feature and placed them in a distinct class.