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River

Loreto-Yacu

2 profiles across 2 families name the Loreto-Yacu as a locality.

Species
2
Families
2
Photographed
2 of 2
Difficulty rated
2 of 2

Shares fishes withspecies recorded from both

This species possesses an elongate body shape relative to congeners.

Carnegiella myersiPygmy Hatchetfish

Gasteropelecidae · Fernandez-Yepes, 1950

Max length
25mm SL1.0in SL
Tank
50 × 30cm20 × 12in
Temp
23–26°C73–79°F
pH
4.0–7.0

The smallest and most delicate of the nominal hatchetfishes. The rounded keel is shallower than related species, giving this fish a distinctive elongate profile. The family Gasteropelecidae is separated from other Characiformes by the following combination of characters: front...

Easy
Specimen from the Danish aquarium trade.

Hyphessobrycon loretoensisLoreto Tetra

Characidae · Ladiges, 1938

Max length
25mm SL1.0in SL
Tank
60 × 30cm24 × 12in
Temp
22–28°C72–82°F
pH
5.0–7.0

The most recent diagnosis appears to be that of Géry (1977), in which it was separated from other members of the group by the following combination of characters: dorsal-fin insertion at or slightly anterior to mid-body; caudal-fin brick red to orange-red; body depth fits less than 3.6 times in SL; head length fits 3.5-4.0 times in SL; caudal peduncle length u...

Easy