Phreatobius
2 species
Phreatobius is a genus of very small catfishes (order Siluriformes) from tropical South America.
The three scientifically described Phreatobius species all live underground and are known only from artificial wells penetrating near-surface aquifers of the Amazon basin. The genus has one of the widest distribution of any hypogean fish genus, with P. sanguijuela from the upper Amazon, some 2000 km from reported locations of P. cisternarum near the Amazon River mouth, and P. dracunculus also approximately 1900 km from the Rio Branco drainage area.
Phreatobius is a genus of very small catfishes (order Siluriformes) from tropical South America.
The three scientifically described Phreatobius species all live underground and are known only from artificial wells penetrating near-surface aquifers of the Amazon basin. The genus has one of the widest distribution of any hypogean fish genus, with P. sanguijuela from the upper Amazon, some 2000 km from reported locations of P. cisternarum near the Amazon River mouth, and P. dracunculus also approximately 1900 km from the Rio Branco drainage area.