Cynopotamus amazonum (Günther, 1868)

Family:  Characidae (Characins; tetras), subfamily: Characinae
Max. size:  18 cm SL (male/unsexed); 23.1 cm (female); max.weight: 161.3 g; max.weight: 275.5 g
Environment:  benthopelagic; freshwater
Distribution:  South America: Amazon River basin.
Diagnosis:  Dorsal spines (total): 2-2; Dorsal soft rays (total): 9-9; Anal spines: 4-4; Anal soft rays: 36-41. Eyes very large with orbital diameter equal to or just slightly smaller than length of snout. Gibbosity very pronounced.
Biology: 
IUCN Red List Status: Least Concern (LC); Date assessed: 04 March 2021 Ref. (130435)
Threat to humans:  harmless


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