Owing to the great diversity of the morphology, habit and habitats of fishes which is almost related to diversity of the structure and anatomy of the animals'organs and systems and due to few studies furnish information about the centraland peripheral nervous system; this book deals with the anatomy of the cranial nerves of one teleost fish of the members of family Cyprinidae.The family Cyprinidae is the most diverse family of the freshwater fishes in the world with at least 210 genera and over 2010 species.