Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Osteoglossiformes
(Bony tongues) > Hiodontidae
Etymology: Hiodon: From Greek letter "gamma, "y", due to the shape of the teeth; Greek, odous = teeth; bone forming the base of the tongue (Ref. 45335); tergisus: From the word tergisus, meaning polished (Ref. 10294). More on author: Lesueur.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; pelagic. Temperate; 60°N - 30°N
North America: St. Lawrence-Great Lakes (except Superior) in Canada-USA, Mississippi River in USA, and Hudson Bay basins from Quebec to Alberta in Canada and south to Gulf of Mexico; Gulf Slope drainages from Mobile Bay in Alabama to Lake Pontchartrain in Louisiana, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 47.0 cm TL male/unsexed; (Ref. 5723); common length : 28.3 cm TL male/unsexed; (Ref. 12193); max. published weight: 907.00 g (Ref. 3221); max. reported age: 10 years (Ref. 12193)
Occur in deep pools and backwaters of medium to large rivers, lakes and impoundments (Ref. 5723, 10294).
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. 119314)
CITES (Ref. 115941)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00385 - 0.01493), b=3.08 (2.90 - 3.26), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 3.7 ±0.56 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (tmax=10).
Vulnerability (Ref. 59153
): Moderate vulnerability (38 of 100) .