original description
Carpenter, P. H. (1882). Description of new or little known Comatulae. I. On the species of Atelecrinus and Eudiocrinus. II. The Comatulae of the Hamburg Museum. <em>Journal of the Linnean Society of London (Zoology).</em> 16:487–526. [details]
basis of record
Clark, A. H. (1941). A monograph of the existing crinoids. I (4a). Superfamily Mariametrida (except the family Colobometridae. <em>Bull. US natn Mus.</em> 82: 4-1. [details]
From editor or global species database
Diagnosis Mariametracea with five undivided rays. Syzygy between brachials 1-2 and 5-6; synarthry between brachials 3-4. [details]