basis of record
van der Land, J. (2001). Hemichordata, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 336 (look up in IMIS) [details]
From editor or global species database
Remark Only one species is listed in this genus, and it is a nomen dubium. It's currently only known from pelagic larvae. [details]