Nomenclature
original description
Clark, A. H. (1916). Six new genera of unstalked crinoids belonging to the families Thalassometridae and Charitometridae. Washington Academy of Sciences, Journal 6 (17):605-608., available online at https://www.jstor.org/stable/24521244 [details]
basis of record
Clark, A. H. (1950) A monograph of the existing crinoids. 1(4c). Bulletin of the U.S. National Museum 82:1-383, 32 pls. [details]
Other
From editor or global species database
Diagnosis A genus of Charitometridae with genital pinnules tapering evenly from the broadened proximal segments to a delicate tip; portion beyond gonad much longer than gonad itself; brachitaxes and arms V-shaped in cross section; ray ossicles keeled aborally; keels forming high overlapping spine or tubercle on distal brachials; centrodorsal conical or columnar; cirrus sockets in 5 or 10 columns. [details]