Ctenolucius beani (Fowler, 1907)
Ctenolucius beani
photo by Mikolji, I.

Family:  Ctenoluciidae (Pike-characids)
Max. size:  28.6 cm SL (male/unsexed)
Environment:  pelagic; freshwater; pH range: 5.5 - 7; dH range: 15
Distribution:  Central and South America: Río Atrato and Río San Juan of northwestern Colombia and Pacific drainage rivers of Panama as far west as the Río Santa Maria system in Veraguas Province.
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 9-11; Anal spines: 0-0; Anal soft rays: 10-13; Vertebrae: 45-48. Can be distinguished from C. hujeta by differences in body pigmentation, number of vertebrae, relative least depth of caudal peduncle, the alignment of the articulation between the sixth infraorbital and supraorbital, and number of lateral line scales.
Biology: 
IUCN Red List Status: Least Concern (LC); Date assessed: 29 April 2019 Ref. (130435)
Threat to humans:  harmless
Country info:  Known from the Pacific versant rivers as far west as the Río Santa Maria system in Veraguas Province. Collected from Darien (Río Seteganti, Río Tuira, Río Pirre, Río Pucuro, Río Capetí, Río Yape, Río Aruza, Río Membrillo, Río Uruseca, and Río Chucunaque), Panama (Río Mamoni, Río Marte Arnade, Río Calobre, Río Abaco, Río Juan Diaz, swamps at La Jagua Hunting Club, creeks along Inter-American Highway about 7.2 km and 14.5 km E of Río Pacora), Veraguas (creek at bridge about 14.5 km from Santiago on road to San Francisco, Río Santa Maria basin), and Herrera (creek tributary to Río Escota).


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