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Lacantunia enigmatica  Rodiles-Hernández, Hendrickson & Lundberg, 2005

Chiapas catfish
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Image of Lacantunia enigmatica (Chiapas catfish)
Lacantunia enigmatica
Picture by Ng, H.H.

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

Actinopterygii (ray-finned fishes) > Siluriformes (Catfish) > Lacantuniidae (Chiapas catfishes)
Etymology: Lacantunia: Named for Rio Lacantún in Chiapas, the tributary river of Rio Usumacinta inhabited by the new catfish;  enigmatica: From the Latin name 'enigmatica' = baffling or inexplicable, for the unexpected discovery, obscure relationships and origin.

Environment / Climate / Range Ecology

Freshwater; pelagic; depth range 0 - 18 m (Ref. 54757).   Tropical

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

North America: Mexico.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 42.7 cm SL male/unsexed; (Ref. 54757); 40.6 cm SL (female)

Short description Morphology | Morphometrics

Dorsal spines (total): 2; Dorsal soft rays (total): 8-10; Anal spines: 0. This species is distinguished from all other siluriforms by the following uniquely derived and anatomically complex characteristics: fifth infraorbital bone relatively wide and thick-walled, boomerang-shaped and anteriorly convex, and remote from a markedly prominent sphenotic process; the lateral margin of skull thickened along frontal bone and adjacent parts of lateral ethmoid and sphenotic bones at origins of much enlarged adductor mandibulae and levator arcus palatini muscles, otherwise the skull roof medial to muscle origins severely constricted, flat, lacking crests and fossae; a pair of cone-shaped "pseudo-pharyngobranchial" bones at anterior tips of enlarged accessory cartilages medial to first and second epibranchials; a hypertrophied, axe-shaped uncinate process on third epibranchial; gas bladder with paired spherical, unencapsulated diverticulae protruding from anterodorsal wall (Ref. 54757).

Biology     Glossary (e.g. epibenthic)

Inhabits deep river channels and pools with rocks and strong eddy currents. sometimes taken in stream mouths; collected in both high and low water seasons, and generally during the night. Food include fishes, crabs, prawns, and large and tough seeds (Ref. 54757).

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

Main reference Upload your references | References | Coordinator | Collaborators

Rodiles-Hernández, R., D.A. Hendrickson, J.G. Lundberg and J.M. Humphries, 2005. Lacantunia enigmatica (Teleostei: Siluriformes) a new and phylogenetically puzzling freshwater fish from Mesoamerica. Zootaxa 1000:1-24. (Ref. 54757)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki |

More information

Countries
FAO areas
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Ecology
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Common names
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Ciguatera
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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 | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.3   ±0.54 se; Based on food items.
Resilience (Ref. 69278):  .
Vulnerability (Ref. 59153):  Moderate vulnerability (41 of 100) .