Template:Kritsky et al., 1997
- Kritsky, D.C., Boeger, W.A. & Jégu, M. 1997. Neotropical Monogenoidea. 29. Ancyrocephalinae (Dactylogyridae) of Piranha and Their Relatives (Teleostei, Serrasalmidae) from Brazil: Species of Amphithecium Boeger and Kritsky, 1988, Heterothecium gen. n. and Pithanothecium gen. n. Journal of the Helminthological Society of Washington 64(1): 25–54. The Helminthological Society of Washington (PDF)