Sternopygus arenatus (Eydoux & Souleyet, 1850)
photo by Revelo, W. & Laaz, E.

Family:  Sternopygidae (Glass knifefishes)
Max. size:  56 cm TL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  South America: Guayaquil River basin in Ecuador.
Diagnosis:  Anal spines: 0-0; Anal soft rays: 180-225
Biology: 
IUCN Red List Status: Least Concern (LC); Date assessed: 02 October 2020 Ref. (130435)
Threat to humans:  harmless


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