Kôkotsugyorui 硬骨魚類 Bony Fish

Probably the Chapter with most Information, including almost 900 different Fishes. It starts off with Parasites and other potential Dangers when dealing with Fish. There are general Informations on Fish Parts (more than 30 different ones that can be eaten), Fish Dishes and Preservation. Another interesting Topic, especially when buying Japanese Fish is aquaculture, including information on most Fish that are farmed in Japan.

On an individual basis, Seasonality or Spawning is given, when known. Regional Synonyms can be found as well, if the Fish is of significance in that Region. Some Ryûkyûan Fish Names are Gender based, as in some Fish the Color of a Fish can be dramatically different, depending on the Gender.