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Synodontis sorex  Günther, 1864

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Synodontis sorex
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Siluriformes (Catfish) > Mochokidae (Squeakers or upside-down catfishes)
Etymology: Synodontis: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335).   More on author: Günther.

Environment / Climate / Range Ecology

Freshwater; benthopelagic.   Tropical, preferred ?

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

Africa: upper Senegal (Mali), Niger, Volta and Chad basins (Ref. 57223). Also in the Nile (Ref. 3202).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 36.0 cm SL male/unsexed; (Ref. 31256)

Short description Morphology | Morphometrics

Dorsal spines (total): 1; Anal spines: 0. Diagnosis: gill slits not extending ventrally beyond pectoral-fin insertions; post-orbital length at most 60% of snout length; maxillary barbels broadly fringed, shorter than head, unbranched and without tubercles, but with a well visible, broad basal membrane; mandibular barbels with rather numerous, long, simple and tuberculate ramifications; mandibular teeth very long, numbering 6-10 (10 in the lectotype); denticulations on pectoral-fin spines finer and more close-set on outer than on inner margin; dorsal-fin spine finely denticulate on anterior margin; humeral process deep, granulose, its lower margin convex, ending in a blunt point and not keeled; adipose fin normally developed and distinctly separated from rayed dorsal fin, its posterior margin truncate; caudal fin strongly developed as compared to that of other species (Ref. 57223). Coloration: general appearance greyish, ventral regions lighter; outer margins of caudal fin black-edged (Ref. 57223).

Biology     Glossary (e.g. epibenthic)

Oviparous (Ref. 205). Maximum reported size: 400mm TL, 310mm SL (Ref. 57223).

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

Oviparous (Ref. 205). Distinct pairing during breeding (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

Paugy, D. and T.R. Roberts, 2003. Mochokidae. p. 195-268 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57223)

IUCN Red List Status (Ref. 109396)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

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

More information

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Internet sources

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

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01660 (0.00902 - 0.03052), b=2.98 (2.82 - 3.14), based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  2.8   ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Moderate vulnerability (41 of 100) .
Price category (Ref. 80766):   Unknown.