Which osteoglossomorph fishes live in North America?

Osteoglossomorph fishes found in North America belong to the order Hiodontiformes, which are considered the most primitive group of living osteoglossomorphs. Unlike other members of the superorder that are primarily found in tropical regions of Africa, Asia, South America, and Australia, hiodontiforms are confined to North America.123

There are two extant species within this group, both belonging to the family Hiodontidae and the genus Hiodon:23

• Goldeye (Hiodon alosoides): A blue-backed, silvery fish that typically grows to about 25 cm.42
• Mooneye (Hiodon tergisus): A herring-like fish with sharp teeth and large eyes that can reach lengths of approximately 42.5 cm (17 inches).42

These fishes are distinct from the broader group of osteoglossiforms, which are generally tropical and include diverse families such as the bonytongues, knifefishes, and mormyrs.23