Typhliasina pearsei, Mexican blind brotula

Typhliasina pearsei (Hubbs, 1938)

Mexican blind brotula
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Typhliasina pearsei
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Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Ophidiiformes (Cusk eels) > Dinematichthyidae (Viviparous brotula)
  More on author: Hubbs.

Environment: milieu / climate zone / depth range / distribution range Ecología

; agua dulce demersal; rango de profundidad - 70 m (Ref. 55786), usually - m (Ref. ).   Tropical; 0°C - ; 21°N - 20°N

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Central America: Yucatan Peninsula, Mexico.

Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 9.7 cm SL macho / no sexado; (Ref. 55786); 8.9 cm SL (female)

Short description Morfología | Morfometría

Radios blandos dorsales (total): 75-87; Radios blandos anales: 59 - 68; Vértebra: 40 - 43. This species is distinguished by the following characters: anterior nostril placed low on snout; tip of opercular spine free; 2 pairs of psedoclaspers, inner one positioned in front of outer one; eyes not visible (eyes minute black dots in specimens less than 20 mm SL); head naked; otolith with fused colliculi; 3 lower preopercular pores; maxillary strongly vertically expanded posteriorly, knob at rear corner; 5-7 prolonged rakers on anterior gill arch; anterior anal fin pterygiophore elongated; pseudobranchial filaments absent (Ref. 55786).

Biología     Glosario (por ej. epibenthic)

Uncommon species found in caves and sinkholes (Ref. 34024). Associated with the blind synbranchid fish Ophisternon infernale (Hubbs, 1938) and several blind crustacean species. In only one cave, it was found with the catfish Rhamdia guatemalensis (Günther, 1864). This species does not react to flashlights, but darted away at the slightest vibration; it seems to feed on troglobitic shrimps and mysids. Newly-born juveniles are light yellow and about 20 mm long (Ref. 55786).

Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Viviparous.

Main reference Upload your references | Referencias | Coordinador | Colaboradores

Møller, P.R., W. Schwarzhans and J.G. Nielsen, 2004. Review of the American Dinematichthyini (Teleostei, Bythitidae). Part I. Dinematichthys, Gunterichthys, Typhliasina and two new genera. aqua, J. Ichthyol. Aquat. Biol. 8(4):141-192. (Ref. 55786)

IUCN Red List Status (Ref. 124695)

  Near Threatened (NT) ; Date assessed: 05 October 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Pesquerías: sin interés
FAO - Publication: search | FishSource |

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consumo de alimento
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Fuentes de Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Género, Especie | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Árbol de la vida | Wikipedia: Go, búsqueda | World Records Freshwater Fishing | Expediente Zoológico

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [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).
Nivel trófico (Ref. 69278):  3.4   ±0.5 se; based on size and trophs of closest relatives
Resiliencia (Ref. 120179):  Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Assuming Fec < 100).
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .