André Marie Constant Duméril (1774 - 1860) was a French zoologist. He was professor of anatomy at the Muséum National d'Histoire Naturelle from 1801 to 1812, when he became professor of herpetology and ichthyology. His son Auguste Duméril was also a zoologist. 1774 was a common year starting on Saturday (see link for calendar). ... 1860 is the leap year starting on Sunday. ... Zoology (Greek zoon = animal and logos = word) is the biological discipline which involves the study of animals. ... Anatomical drawing of the human muscles from the Encyclopédie. ... The Muséum national dHistoire naturelle (MNHN) is the French national museum of natural history. ... Herpetology is the branch of zoology concerned with the study of reptiles and amphibians including their classification, ecology, behavior, physiology, anatomy, and paleontology. ... Ichthyology is the branch of zoology devoted to the study of fish. ...