Red Fin
A perch.
it is called a roost
Limb?
A fish called the climbing perch can climb trees.
Racing loft.
Climbing Perch
The shiny lining of the coelom in a perch fish is called the peritoneum. It is a thin membrane that lines the body cavity and provides protection for the internal organs.
A fish that is called a yellow perch.
A perch for a mountain goat is a ledge.
The true perch is perca flavescens, and is indigenous to the Great Lakes watershed, most of the northern tier of states and up to central Canada. They are most commonly called "Perch", "Yellow Perch" and "Lake Perch". That said, "perch" is one of the most misused terms in the restaurant industry, being used to describe half a dozen different fresh and salt water fishes, some of them not remotely like Yellow perch in flavor or quality.
The true perch is perca flavescens, and is indigenous to the Great Lakes watershed, most of the northern tier of states and up to central Canada. They are most commonly called "Perch", "Yellow Perch" and "Lake Perch". That said, "perch" is one of the most misused terms in the restaurant industry, being used to describe half a dozen different fresh and salt water fishes, some of them not remotely like Yellow perch in flavor or quality.
The plural of perch, when referring to a bird's perch, is perches. The plural of perch, when referring to the fish, remains perch.