Category
page 1Catostomidae

Catostomidae
The Catostomidae are the suckers of the order Cypriniformes, with about 78 species in this family of freshwater fishes. The Catostomidae are almost exclusively native to North America. The only exceptions are Catostomus catostomus, found in both North America and Russia, and Myxocyprinus asiaticus found only in China. In the Ozarks they are a common food fish and a festival is held each year to celebrate them. The bigmouth buffalo, Ictiobus cyprinellus, can reach an age up to 127 years, making it the oldest known freshwater teleost by more than 50 years.

razorback sucker
species of fish
Ictiobus
Ictiobus, also known as buffalofishes, buffalofish or simply buffalo, is a genus of freshwater fish native to North America, specifically the United States, Canada, Mexico, and Guatemala. They are the largest and longest-lived of the North American suckers, reaching up to in length and more than 100 years of age for three of the five species. At up to 127 years for bigmouth buffalo, they are the longest-lived freshwater teleost, which is a group of more than 12,000 species. Bigmouth buffalo, black buffalo and smallmouth buffalo are found in the United States or Canada. Little is known about th

Catostomus
Catostomus is a genus of fish belonging to the family Catostomidae, commonly known as suckers. This genus of fish usually lives in freshwater basins. Most members of the genus are native to North America, but C. catostomus is also found in Russia. A majority of species inhabit western North America, with only C. catostomus, C. commersonii, and C. utawana being found in eastern North America.

Lost River sucker
species of fish

Greater redhorse
species of fish
Moxostoma
Moxostoma, the redhorses or jumprocks, is a genus of North American ray-finned fish in the family Catostomidae. Redhorses are variable in size, geographic location, and other ecological traits such as spawning substrate. Several redhorses are long-lived (lifespans greater than 20 years), much like many other catostomid species. The silver redhorse is the longest-lived redhorse known by nearly a decade, with ages exceeding 40 years. Redhorses are broadly of conservation concern, as these long-lived species are highly intolerant to environmental pollution, habitat fragmentation, and are currentl

Spotted sucker
species of fish
Erimyzon
Erimyzon is a genus of suckers native to North America. There are currently four recognized species in this genus.
Chasmistes
Chasmistes is a genus of ray-finned fish in the family Catostomidae.
Carpiodes
Carpiodes is a genus of suckers found in freshwater in North America, containing species with exceptionally long lifespans for their body size. Long neglected as 'rough fish' in traditional fisheries, in 2025 it was discovered that the three species of carpsucker can live more than 50 years.
Hypentelium
Hypentelium is a genus of suckers found in eastern United States and Canada. There are three recognized species of them.
Cycleptus
Cycleptus is a genus of freshwater fish containing two relatively large North American species of suckers. They are endemic to river basins draining into the Gulf of Mexico, including the Mississippi, Rio Grande and others in the United States and Mexico.
Thoburnia
Thoburnia is a genus of suckers found in the eastern United States. There are currently two recognized species in this genus. Formerly regarded as a subgenus of the genus Moxostoma before elevation to full genus.
Deltistes
Deltistes is a genus of North American freshwater ray-finned fish belonging to the family Catostomidae, the suckers.
Myxocyprinus
Myxocyprinus is a monotypic genus of freshwater fish in the monotypic subfamily Myxocyprininae within the family Catostomidae, with its only species being Myxocyprinus asiaticus. It grows to about long.
Amyzon
extinct genus of fishes