Archolaemus | |
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Gymnotiformes |
Family: | Sternopygidae |
Genus: | Archolaemus Korringa, 1970 |
Type species | |
Archolaemus blax Korringa, 1970
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Archolaemus is a genus of South American glass knifefishes, family Sternopygidae.[1][2][3] They occur in fast-flowing sections of rivers, including rapids, in the Amazon, Tocantins, São Francisco and Araguari basins.[2] Depending on the exact species, they reach up to about 20–50 cm (8–20 in) in total length.[3] During the day they hide in rocky crevices, but during the night they are active and feed on small invertebrates such as aquatic insect larvae.[2]