Schepman, M.M. 1896. Zoological results of the Dutch Scientific expedition to Central Borneo. Notes from the Leyden Museum 17: 145-162. Available electronically.
Schepman, 1896. Notes Leyden Mus. 17: 161, pl. 4, fig. 2.
Schepman, 1896. Notes Leyden Mus. 17: 160, pl. 4, figs. 1-1a.
Type(s): SYNTYPE RMNH_MOL_337637, Mandai River near Nanga Kalis.