All fish belong to the subphylum Vertebrata which for fish can be separated into the jawless fish (Infraphyla: Agnatha, which includes hagfish and lampreys and jawed fish, belonging to the jawed vertibrates (Infraphyla: Gnathostomata).
The jawless fish can be divided into two classes: cartilaginous fish (Chrondrichthyes), which includes rays and sharks and bony fish (Osteichthyes).
The bony fish contain two classes: ray-finned fish (Actinopterygii) which include the infraclass Teleostei containing almost 96% of all fish species and the lobe-finned fish (Sarcopterygii) that include oa the coelocanths and lungfishes.
More detailed information can be found here.
Adapted from Sharon Highschool Credits; CC BY-SA 3.0
The anatomy of bony fish is represented here
More detailed information can be found here.
In general all fish brain can be divided into Six sections from anterior to posterior:
More detailed information can be found here.
Adapted from Sharon Highschool Credits; CC BY-SA 3.0
Hinke Boer, Fons Brauers, Andy Louter, Lindsey Pennaertz, Aisha Raja and Tonny Mulder - University of Amsterdam
