basis of recordHayward, P.J. (2001). Bryozoa, <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. 325-333 (look up in IMIS) [details]
additional sourceHayward, P.J.; Ryland, J.S. (1985). Cyclostome bryozoans: keys and notes for the identification of the species. <i>Synopses of the British fauna (new series)</i>, 34. E.J. Brill; W. Backhuys: London, UK. ISBN 90-04-07697-2. vi, 154 pp. (look up in IMIS) [details]
Present Inaccurate Introduced: alien Containing type locality