Red Hook Silver Dollar Myloplus (prev. Myleus) rubripinnis

Red Hook Silver Dollar
Red Hook Silver Dollar
Red Hook Silver Dollar
The Red Hook Silver Dollar, also called Red Hook Myleus, is strangely-named since some Argenteus Silver Dollar fish have red hooked anal fins but the Red Hook is red-spotted often with a notched, clear anal fin (sometimes red-tipped).
Red Hook Silver Dollar
Red Hook Silver Dollar
Red Hook Silver Dollar
The Myleus and Myloplus genera have a small round adipose fin near the tail rather than the elongated one of the Metynnis genus. This allows a longer dorsal fin.
Red Hook Myleus
Red Hook Silver Dollar
Red Hook Silver Dollar
These above are more deserving of the name "Red Hook". They are related to Piranha but are omnivorous, eating plant matter and insect larvae.
Red Hook Silver Dollar
Red Hook Silver Dollar
Red Hook Silver Dollar
The Red Hook is native to slow-moving waters of the Guyana Shield, the Orinoco and Amazon basins. As Piranha relatives, they have strong teeth.
Red Hook Silver Dollar
Red Hook Silver Dollar
Red Hook Silver Dollar
The spots are sometimes yellow or mixed. They live in peaceful shoals and can grow to 40cm (15 inches) long.
Red Hook Silver Dollar
Red Hook Silver Dollar
Red Hook Silver Dollar
These above are not as sharply spotted and have an elongated, unnotched, anal fin (black-tipped and red-tipped). They have the small, rounded adipose fin of the genus.
Red Hook Silver Dollar
Red Hook Silver Dollar
Red Hook Silver Dollar
Some Red Hook Silver Dollars have only faint red spots, as above, and some seem to have no visible spots. (The Red Spot Silver Dollar is a different genus - Metynnis mola.)