original description
Verrill, A.E. (1909). Remarkable development of starfishes on the Northwest American coast; hybridism; multiplicity of rays; teratology; problems in evolution; geographical distribution. <em>American Naturalist.</em> 43(513): 542-555., available online at https://www.biodiversitylibrary.org/page/43286584 [details]
From editor or global species database
Synonymy A forma of Evasterias troscheli (Stimpson, 1862) according to Djakonov (1950). [details]