There are two types of fish that usually are contentious, and give a lot of people a hard time telling apart. If you can learn the differences between these two types of fish, it can be very easy for you to understand and tell them apart where necessary. Technically, the most obvious disparity between bony vs cartilaginous fish comes from the fact that the skeleton of bony fish is made of bones alone, while that of cartilaginous fish is made of cartilage.
There are more than 20,000 fish species in the world. Of the class Chordata, Pisces is a super class. The reason for this is because more than half of the chordates are generally fishes. From this category, fishes are classified as either osteichthyes or chondrichthyes (bony fish or cartilaginous fish). This brings us to the comparison between bony vs cartilaginous fish.
This category of fish is also referred to as Teleostomi. It is also considered the largest class in Phylum Chordata. These fish are widely recognized because of the following characteristics:
Some of the fish in this category include flying fish, globe fish, sea horses and eels.
This category of fish is also referred to as Elasmobranchi. In this category you will primarily find marine fishes. Therefore, you should not find any fresh water fish in this group. They generally possess the following characteristics:
Some of the common fish in this group include dog fish, skates, electric ray torpedo, and sharks. If you understand these differences, it is easier for you to tell the two types of fish apart.