Sperm and Spermatozeugma Ultrastructure in the Inseminating Species Tyttocharax cochui, T. tambopatensi and Scopaeocharax rhinodus (Pisces: Teleostei: Characidae: Glandulocaudinae: Xenurobryconini)v. 263No. 1216–226
Pecio, A., Burns, John R., and Weitzman, Stanley H. 2005. "Sperm and Spermatozeugma Ultrastructure in the Inseminating Species Tyttocharax cochui, T. tambopatensi and Scopaeocharax rhinodus (Pisces: Teleostei: Characidae: Glandulocaudinae: Xenurobryconini)." Journal of Morphology, 263, (1) 216–226.