Falcidens

Falcidens is one of three genera within the family Chaetodermatida; its radula consists of a single row of teeth which are mineralized in crystalline hydroxyapatite (a most unusual mineral in organisms), and its teeth are not periodically shed and replaced like in other molluscs. For details of the radula, see Radula#In caudofoveates.

It contains the following species: Falcidens acutargatus Salvini-Plawen, 1992 Falcidens aequabilis Salvini-Plawen, 1972 Falcidens caudatus Heath, 1918) Falcidens chiastos Scheltema, 1989 Falcidens crossotus Salvini-Plawen, 1968 Falcidens gutturosus Kowalewsky, 1901) Falcidens halanychi Schander, Scheltema & Ivanov, 2006 Falcidens hartmanae Schwabl, 1961) Falcidens hoffmanni Stork, 1939) Falcidens indicus Stork, 1941) Falcidens ingolfensis Salvini-Plawen, 1971 Falcidens limifossorides Salvini-Plawen, 1986 Falcidens liosqueameus Salvini-Plawen, 1969 Falcidens lipuros Scheltema, 1989 Falcidens longus Scheltema, 1998 Falcidens loveni Nierstrasz, 1902) Falcidens macracanthos Scheltema, 1998 Falcidens macrafrondis Scheltema, 1989 Falcidens nontargatus Salvini-Plawen, 1992 Falcidens normanni Nierstrasz, 1903) Falcidens poias Scheltema, 1995 Falcidens profundus Salvini-Plawen, 1968 Falcidens sagittiferus Salvini-Plawen, 1968 Falcidens sterreri Salvini-Plawen, 1967) Falcidens strigisquamatus Salvini-Plawen, 1977) Falcidens targatus Salvini-Plawen, 1986 Falcidens targotegulatus Salvini-Plawen, 1992 Falcidens thorensis Salvini-Plawen, 1971 Falcidens vasconiensis Salvini-Plawen, 1996 Falcidens wireni Nierstrasz, 1902)