Deardorff, T.L. & Brooks, D.R. & Thorson, T.B. (1981)
A new species of Echinocephalus (Nematoda: Gnathostomidae) from Neotropical stingrays with comments on E. diasi. Journal of Parasitology, 67(3), 433–439
de Marques, F.P. (2000)
Evolution of Neotropical freshwater stingrays and their parasites: taking into account space and time. Unpublished PhD dissertation, University of Toronto, Toronto.
Thatcher, V.E. (2006)
Amazon Fish Parasites (Second edition). Volume 1. Aquatic Biodiversity in Latin America, 1, PENSOFT Publishers, Sofia, 508pp