Gymnotus tigre Albert & Crampton, 2003
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 Family:  Gymnotidae (Naked-back knifefishes)
 Max. size:  41.1 cm TL (male/unsexed)
 Environment:  benthopelagic
 Distribution:  South America: Río Amazon basin, Río Pastaza basin in Ecuador to the Tapajós basin in Brazil.
 Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 0-0; Anal soft rays: 190-240. Presence of irregular pale-yellow blotches on chin, behind and under eyes, over opercle, and between eyes; pale yellow bands on body with straight, high contrast margins, as broad or broader than brown bands anteriorly; obliquely oriented hyaline and dark stripes at caudal end of anal fin (Ref. 49716).
 Biology: 
 IUCN Red List Status: Not Evaluated  (Ref. 96402)
 Threat to humans:  harmless
 Country info:   
 

 Entered by: Garilao, Cristina V. - 18.11.03

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