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Odaxothrissa mento  (Regan, 1917)

Nigerian fangtooth pellonuline
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Odaxothrissa mento
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Clupeiformes (Herrings) > Clupeidae (Herrings, shads, sardines, menhadens) > Dorosomatinae
Etymology: Odaxothrissa: Greek, odax, = with the teeth + Greek, thrissa, -es = shad (Ref. 45335).

Environment / Climate / Range Ecology

Freshwater; pelagic; potamodromous (Ref. 51243).   Tropical; 13°N - 2°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Africa: lower parts of Volta River and Niger River basins, including Benue River (Ref. 188, 81269); also from Cross River to Wouri River in Cameroon (Ref. 188, 81631). Apparently not in Congo River system (Ref. 188).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 13.0 cm SL male/unsexed; (Ref. 188)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 15-18; Anal spines: 0; Anal soft rays: 18 - 21; Vertebrae: 42 - 44. Diagnosis: Odaxothrissa mento is characterised by the presence of prepectoral scutes, the first prepectoral scute as large as the following ones lacking ascending arms; lower jaw strongly projecting, with strong canines at symphysis; 2-4 strong backward-pointing canines on each side behind outer row of premaxillary teeth; 16-19 short lower gillrakers; anal fin with 2-3 unbranched and 16-19 branched rays; and a silver stripe along flank (Ref. 188, 2849, 81269, 81631). It resembles Odaxothrissa ansorgii, which has 23-26 gillrakers, and Pellonula vorax which lacks canines in the upper jaw and has longer gillrakers (Ref. 188).

Biology     Glossary (e.g. epibenthic)

Found in rivers and streams, including the man-made Lake Volta (Ref. 188). It feeds on small fishes, including its own juveniles, and on aquatic insects (Ref. 188). Possibly migrates upstream to breed (Ref. 188).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Gourène, G. and G.G. Teugels, 1994. Synopsis de la classification et phylogénie des Pellonulinae de l'Afrique Occidentale et Centrale (Teleostei; Clupeidae). J. Afr. Zool. 108(1):77-91. (Ref. 28136)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: subsistence fisheries
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00523 - 0.01450), b=2.90 (2.76 - 3.04), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic Level (Ref. 69278):  4.3   ±0.75 se; Based on food items.
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (14 of 100) .
Price category (Ref. 80766):   Low.