original description
Verrill, A.E. (1914). Monograph of the shallow-water starfishes of the North Pacific coast from the Arctic Ocean to California. Harriman Alaska series: US National Museum 14: 1-408 pp., available online at http://www.biodiversitylibrary.org/page/20755223 [details]
From editor or global species database
Status A forma of E. troscheli [details]