Reversible.
colour blind
Multi color eyes Ans by witsinbits
The different shapes of the moon are called phases.
(call) one is a single note, (song) is a speical pattern of notes.
In the books it is colorful and full of about 15 different colors but in reality these fish have about 6 different colors which is probably why they call it the Rainbow Fish.
Transparent
rung
Magenta
rust colour
monotint
chlorophyll
One difference is that the inside of a shotgun barrel is smooth and the inside of a rifle barrel is what they call "fluted" which puts rotation on the bullet as it moves though the barrel.