Halcuriidae with distinct base, slight parapet and fosse and no distal lobing. Ectoderm of column, at least in upper part, with nematocyst batteries. No sphincter. Tentacles few. Macrocnemes six pairs, fertile, filamented with strongly restricted, reniform retractors. In the lateral endocoels four pairs of perfect microcnemes which run down the whole length of the body; beyond these first ten pairs (six pairs macrocnemes and four pairs microcnemes) any additional microcnemes are confined to the upper part of the body. Parietobasilar muscles rather weak.
C. desiderata Stephenson 1918
Definitions and contained taxa are those of Oscar Carlgren as published in 1949 : Kungl Svenska Vetenskapsakadamiens Handlingar, Series 4, Volume 1, Number 1
Electronic version made possible by NSF grant DEB95-21819 in the PEET program to D. G. Fautin.