- Descrito por / Described by:
Charles T. Regan, 1908

- Nome original / Original name:
Tetragonopterus scleroparius

- Nome do artigo / Article name:
A collection of freshwater fishes made by Mr. C. F. Underwood in Costa Rica.

- Publicado em / Published in:
Annals and Magazine of Natural History (Series 8) v. 2 (no. 11): 455-464.

- Localidade tipo / Type locality:
Rio Iroquois, vertente do Caribe, bacia do rio Parisimina, 10°09'N, 83°34'48"W, encosta leste de Costa Rica. / Río Iroquois, vertiente del Caribe, ccuenca del río Parisimina, 10°09'N, 83°34'48"W, eastern slope of Costa Rica.