Mexican blind brotula (Typhliasina pearsei)

Scientific name: Typhliasina pearsei Hubbs, 1938

Mexican blind brotula (Typhliasina pearsei)

The Mexican blind brotula (Typhliasina pearsei) is a freshwater fish of the family Bythitidae. Native range: Central America, Yucatan Peninsula, Mexico.

Biology

Dorsal soft rays (total): 75-87; Anal soft rays: 59 - 68; Vertebrae: 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.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Typhliasina pearsei
Family
Bythitidae (Viviparous brotulas)
Order
Ophidiiformes (Cusk eels)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
9.7
Depth range
0–70 m (0–230 ft)
Environment
Freshwater; demersal; depth range 0 - 70 m
Climate
Tropical
Distribution
Central America: Yucatan Peninsula, Mexico.
Conservation status (IUCN)
Vulnerable (VU) (D2)
Threat to humans
Harmless
Uses
Fisheries: of no interest
Resilience
Low, minimum population doubling time 4.5 - 14 years (Assuming Fec

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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