What is one of the most telling physical features used to separate the mangrove snapper from other snappers?

Answer

A distinct, dark lateral line running horizontally from the gill cover to the tail

A key distinguishing characteristic, especially useful for differentiation from species like the mutton snapper, is the presence of a distinct, dark lateral line that runs horizontally across the body from the gill cover to the tail.

What is one of the most telling physical features used to separate the mangrove snapper from other snappers?
animalmarine lifefishtoothmangrove snapper