Description: English: Macrognathus pancalus, sketch from the original description by Hamilton, 1822. Date: 1822. Source: Francis Hamilton (formerly Buchanan): Gangetic Fishes, Edinburgh, 1822. Author: Francis Hamilton.
Description: English: Macrognathus siamensis collected in Thailand. Date: 7 January 2015, 12:43:26. Source: UF 237526 from the Florida Museum fish collection database. Author: Florida Museum.