Stevenson, D. E., C. W. Mecklenburg, and Y. Kai. “Taxonomic Clarification of the Eumicrotremus asperrimus Species Complex (Teleostei: Cyclopteridae) in the Eastern North Pacific”. Zootaxa, vol. 4294, no. 4, July 2017, pp. 419–435, doi:10.11646/zootaxa.4294.4.2.