Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cypriniformes
(Carps) > Catostomidae
(Suckers) > Cycleptinae
Etymology: Cycleptus: Greek, kyklos = round + Greek, leptes = thin (Ref. 45335); elongatus: Cycleptus=round and slender, (meant to mean small round mouth by the author, C.S. Rafinesque); elongatus=elongate (referring to general body shape) (Ref. 79012). More on author: Lesueur.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Subtropical; 47°N - 28°N
North America: Mississippi River basin from Pennsylvania to central Montana and south to Louisiana, USA; Gulf Slope drainages in the USA from Mobile Bay, Alabama to Rio Grande in Texas and New Mexico, and in Mexico.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 93.0 cm TL male/unsexed; (Ref. 5723); common length : 66.5 cm TL male/unsexed; (Ref. 12193); max. reported age: 13 years (Ref. 12193)
Inhabits strong current in deep (1-2.5 m) chutes and main channels of medium to large rivers over bedrock, sand and gravel (Ref. 5723).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00407 (0.00167 - 0.00996), b=3.14 (2.92 - 3.36), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.1 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (tmax=13).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (53 of 100) .