Scaphirhynchus

3 species

Scaphirhynchus is a genus of sturgeons native to North America. All species in this genus are considered to be threatened with extinction or worse. As of 2023, the pallid sturgeon (S. albus) and the Alabama sturgeon (S. suttkusi) are critically endangered according to the International Union for Conservation of Nature.

Member species are found in the Mississippi, Missouri, and Alabama Rivers.

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Member species are found in the Mississippi, Missouri, and Alabama Rivers.

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Shovelnose sturgeon

Scaphirhynchus platorynchus

The shovelnose sturgeon (Scaphirhynchus platorynchus) is the smallest species of freshwater sturgeon native to North America. It is often called hackleback, sand sturgeon, or switchtail. Switchtail refers to the long filament found on the upper lobe...

Pallid sturgeon

Scaphirhynchus albus

The pallid sturgeon (Scaphirhynchus albus) is an endangered species of ray-finned fish, endemic to the waters of the Missouri and lower Mississippi river basins of the United States. It may have even reached the St. Croix River before...

Alabama sturgeon

Scaphirhynchus suttkusi

The Alabama sturgeon (Scaphirhynchus suttkusi) is a species of sturgeon native to the United States of America and now only believed to exist in 130 miles (210 km) of the lower Alabama River. The fish has a distinctive yellowish-orange color, grows...