There are currently two recognized species in this genus: 
Distribution & Habitat
G. anguilla originates from the Negro and Orinoco River basins of Brazil and Venezuela, growing to a length of about 6.1 centimetres (2.4 in) TL. G. niobium reaches about 5.5 cm (2.2 in). These species lack an anal fin.
- Schaefer, Scott A.; Provenzano, Francisco; de Pinna, Mario; Baskin, Jonathan N. (November 29, 2005). "New and Noteworthy Venezuelan Glanapterygine Catfishes (Siluriformes, Trichomycteridae), with Discussion of Their Biogeography and Psammophily" (PDF). American Museum Novitates (3496): 1–27. http://digitallibrary.amnh.org/dspace/bitstream/2246/5665/1/N3496.pdf.
- Froese, Rainer, and Daniel Pauly, eds. (2012). Species of Glanapteryx in FishBase. February 2012 version.
- Froese, Rainer, and Daniel Pauly, eds. (2007). "Glanapteryx anguilla" in FishBase. July 2007 version.
- Froese, Rainer, and Daniel Pauly, eds. (2007). "Glanapteryx niobium" in FishBase. July 2007 version.
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