Actinopteri (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; depth range - m (Ref. ), usually - m (Ref. ). Subtropical; 0°C - ; 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. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass 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 (0.00163 - 0.01018), 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) .