in what kingdoms is chitin found in
Chitin is found in the kingdoms Animalia (animals) and Fungi. In the animal kingdom, it is found in arthropods (crustaceans, insects, etc.), mollusks, and fish (scales of certain species of fish, such as carp).It is also found in the cell walls of fungi. Chitin in the Natural World Chitin, by definition, is a tough outer covering found on many organisms in the natural world. 2  Most often perhaps, chitin is associated with the exoskeleton of an insect, whiâ¦.