| Apteronotidae (Ghost knifefishes), subfamily: Apteronotinae |
| 23.5 cm TL (male/unsexed) |
|
demersal; freshwater; depth range 2 - 30 m |
| South America: Amazon River basin in Brazil. |
|
Anal soft rays: 155-174. Compsaraia iara is easily diagnosed from all species of Compsaraia by the following characters: forehead strongly rounded with dorsal margin of frontals and parasphenoid convex (vs. straight or concave in adult C. compsa and C. samueli); mouth small, gape not reaching vertical with eye in adults (vs. reaching or exceeding vertical with eye in adult C. compsa and C. samueli); absence of premaxilla teeth (vs. 8-16 premaxilla teeth in C. compsa and 4-10 in C. samueli (Ref. 115978). |
| Found in white waters at depths ranging from 2- 30 meters. Feeds exclusively on dipteran (Ceratopogonidae) larvae mixed with very fine sand, suggesting a benthic foraging behavior (Ref. 115978). |
|
Least Concern (LC); Date assessed: 12 October 2020 Ref. (130435)
|
| harmless |
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