@article{articlee900d130,
title   = {Taxonomy of the freshwater crabs of Costa Rica, with a revision of the genus Ptychophallus Smalley, 1964 (Crustacea: Decapoda: Pseudothelphusidae)},
author = {Magalhães, Célio and Wehrtmann , Ingo S and Lara, Luis Rólier and Mantelatto, Fernando Luis Medina},
year = {2015},
doi = {10.11646/zootaxa.3905.3.1},
journal   = {Zootaxa}
}