Pterobrycon myrnae
Pterobrycon myrnae Bussing, 1974
Semaphore tetra
Pterobrycon myrnae
photo by Hoffmann, P. and M. Hoffmann


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Family:  Stevardiidae (Stevardiids), subfamily: Stevardiinae
Max. size:  3.9 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater; pH range: 6 - 7; dH range: 15
Distribution:  Central America: Pacific drainages of southern Costa Rica, Jicote and Rincon rivers and the Esquinas River of Osa Peninsula.
Diagnosis:   
Biology:  Aquarium specimens reach 7.0 cm TL (Ref. 2060). Inhabits creeks of low to high current velocity. Collected in sites between elevations of 10 to 80 m, insectivorous (Ref. 36880).
IUCN Red List Status: Endangered (EN); Date assessed: 16 May 2019 (B1ab(iii)) Ref. (130435)
Threat to humans:  harmless


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