''Falcidens'' is one of three genera within the family
Chaetodermatida; its
radula
The radula (, ; plural radulae or radulas) is an anatomical structure used by molluscs for feeding, sometimes compared to a tongue. It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food ...
consists of a single row of teeth which are
mineralized in crystalline
hydroxyapatite
Hydroxyapatite, also called hydroxylapatite (HA), is a naturally occurring mineral form of calcium apatite with the formula Ca5(PO4)3(OH), but it is usually written Ca10(PO4)6(OH)2 to denote that the crystal unit cell comprises two entities. ...
(a most unusual mineral in organisms), and its teeth are not periodically shed and replaced like in other
mollusc
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is esti ...
s.
'' For details of the radula, see
Radula#In caudofoveates.''
It contains the following species:
* ''
Falcidens acutargatus
''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 s ...
''
Salvini-Plawen, 1992
* ''
Falcidens aequabilis
''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 s ...
''
Salvini-Plawen, 1972
* ''
Falcidens caudatus''
Heath, 1918)
* ''
Falcidens chiastos''
Scheltema, 1989
* ''
Falcidens crossotus''
Salvini-Plawen, 1968
* ''
Falcidens gutturosus''
Kowalewsky, 1901)
* ''
Falcidens halanychi
''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 s ...
''
Schander, Scheltema & Ivanov, 2006
* ''
Falcidens hartmanae
''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 s ...
''
Schwabl, 1961)
* ''
Falcidens hoffmanni
''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 s ...
''
Stork, 1939)
* ''
Falcidens indicus
''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 s ...
''
Stork, 1941)
* ''
Falcidens ingolfensis
''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 s ...
''
Salvini-Plawen, 1971
* ''
Falcidens limifossorides
''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 s ...
''
Salvini-Plawen, 1986
* ''
Falcidens liosqueameus
''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 s ...
''
Salvini-Plawen, 1969
* ''
Falcidens lipuros
''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 s ...
''
Scheltema, 1989
* ''
Falcidens longus
''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 s ...
''
Scheltema, 1998
* ''
Falcidens loveni
''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 s ...
''
Nierstrasz, 1902)
* ''
Falcidens macracanthos
''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 s ...
''
Scheltema, 1998
* ''
Falcidens macrafrondis''
Scheltema, 1989
* ''
Falcidens nontargatus
''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 s ...
''
Salvini-Plawen, 1992
* ''
Falcidens normanni
''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 s ...
''
Nierstrasz, 1903)
* ''
Falcidens poias
''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 s ...
''
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
''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 s ...
''
Nierstrasz, 1902)
References
{{Taxonbar, from=Q3017063
Aplacophorans