Awaous tajasica (Lichtenstein, 1822)
Sand fish
photo by Sazima, I.

Family:  Gobiidae (Gobies), subfamily: Gobionellinae
Max. size:  16.3 cm SL (male/unsexed)
Environment:  demersal; freshwater; brackish; pH range: 7; dH range: 10 - 20, amphidromous
Distribution:  South America: found only in Brazil from Piaui southward to Santa Catarina. Central America: questionable reports from Florida in USA and Antilles to Central America (Ref. 7251).
Diagnosis:   
Biology:  Found in lakes, ponds, rivers and streams. Occurs in brackish water in seasonally intermittent streams.
IUCN Red List Status: Least Concern (LC); Date assessed: 15 November 2018 Ref. (130435)
Threat to humans:  harmless


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