Author: Boulenger, 1887
Remark: No recent description.  It is a slender species with a narrow black stripe across the body just above the middle and a reddish color in life (color photo, Ramiro Barriga).  It appears to be limited to streams above 250 m elevation in northern tributaries of the Amazon River in Ecuador and Peru.  It is not recorded from streams nearby in Colombia. Eschmeyer, 1998:522, Stewart, Barriga S, Ibarra, 1987:21; Ortega and Vari, 1986:10.