Martins, C.A.M., Nascimento, W.M.D., Santos, L.C.D., Magalhães, C. and Pinheiro, A.P. 2021. A new species of the genus Fredius Pretzmann, 1967 (Decapoda: Brachyura: Pseudothelphusidae) from Brazil, with comments on the southerly distribution of the family . Zootaxa. 4903, 2 (Jan. 2021), 285–295. DOI:https://doi.org/10.11646/zootaxa.4903.2.8.