Original description as Dactyloscopus amnis:
- Miller, Robert Rush & J.C. Briggs. 1962. "Dactyloscopus amnis, a new sand stargazer from rivers of the Pacific slope of southern Mexico". Occasional Papers of the Museum of Zoology, University of Michigan. (627):1-11 (ffm00383)
- Dactyloscopus thysanotus Böhlke, 1966, with type locality at Chame Point, (Pacific) Panama. Determiner: Dawson, 1975
Conservation: Dactyloscopus amnis is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (LC) least concern (2010).