Preserved Gray Perch for dissection demonstrates the characteristic anatomy of the class Osteichthyes-the boney fish. This is the largest class of vertebrates both in number of species and in number of individuals.
Pomadasys macracanthus. The freshwater perch demonstrates the characteristic anatomy of the class Osteichthyes-the bony fish. This is the largest class of vertebrates both in number of species and number of individuals. Like the cartilaginous fish, the bony fish possess a two-chambered heart but differ in the development of a complete bony skeleton and a buoyancy-regulating swim-bladder. The gray perch is a less expensive alternative to the yellow perch. Dissection manuals for the yellow perch can be used. Measured from the tip of the head to the tip of the tail. All are plain preserved (non-injected).