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