abyssicola, Thyasira flexuosa abyssicola Forbes
acuticarinata, Thyasira acuticarinata (Smith, 1895)
adelaideanus, Channelaxinus adelaideanus (Iredale, 1930)
albigena, Axinulus albigena (Hedley, 1907) † - syn of: Genaxinus albigena (Hedley, 1907) † (FOSSIL)
albigena, Genaxinus albigena (Hedley, 1907) † (FOSSIL)
albigena, Thyasira albigena Hedley, 1907 † - syn of: Genaxinus albigena (Hedley, 1907) † (FOSSIL)
alleni, Thyasira alleni Carrozza, 1981
alta, Thyasira alta Verrill & Bush, 1898
anassa, Thyasira anassa Oliver, 2015
antarcticus, Axinulus antarcticus Zelaya, 2010
atlantica, Thyasira atlantica Payne & Allen, 1991
austrosulca, Thyasira austrosulca Stilwell & al., 2004 † (FOSSIL)
baca, Thyasira baca Devjatilova, 1981 † (FOSSIL)
bamberi, Parathyasira bamberi Oliver, 2015
barbarensis, Thyasira barbarensis (Dall, 1890)
bartrumi, Thyasira bartrumi Powell, 1935 † (FOSSIL)
bathyaulax, Conchocele bathyaulax Hickman, 2015 † (FOSSIL)
becca, Thyasira becca , † (FOSSIL)
becca cobbani, Thyasira becca cobbani Kauffman, 1967 † (FOSSIL)
benthicola, Channelaxinus benthicola (Iredale, 1930)
benthicola, Thyasira benthicola Iredale, 1930 - syn of: Channelaxinus benthicola (Iredale, 1930)
beui, Thyasira beui Amano, Little & al., 2015
biplicata, Thyasira biplicata (Philippi, 1836)
biscayensis, Thyasira biscayensis Payne & Allen, 1991
bisecta, Conchocele bisecta (Conrad, 1849)
bisecta, Thyasira bisecta Conrad, 1849 - syn of: Conchocele bisecta (Conrad, 1849)
bisecta alta, Thyasira bisecta alta Krishtofovich, 1936 - syn of: Conchocele bisecta (Conrad, 1849)
bisecta humila, Thyasira bisecta humila Krishtofovich, 1936 - syn of: Conchocele bisecta (Conrad, 1849)
bisecta nipponica, Thyasira bisecta nipponica Yabe & Nomura, 1925 - syn of: Conchocele bisecta (Conrad, 1849)
bisecta smekhovi, Conchocele bisecta smekhovi Kogan, 1939 - syn of: Conchocele bisecta (Conrad, 1849)
bongraini, Axinulus bongraini (Lamy, 1911)
borshengi, Thyasira borshengi Okutani & Lan, 1999
brevis, Axinulus brevis (Verrill & Bush, 1898)
brongniarti, Thyasira brongniarti Deshayes, 1857 † (FOSSIL)
caldarium, Spinaxinus caldarium Oliver & Rodrigues, 2017
capax, Thyasira capax Gould, 1850 - syn of: Tresus capax (Gould, 1850)
capitanea, Thyasira capitanea Åström & Oliver, 2017
careyi, Axinulus careyi F.R. Bernard, 1979
carrozae, Mendicula carrozae (Payne & Allen, 1991)
cascadiensis, Axinus cascadiensis Oliver & Holmes, 2007
chilensis, Thyasira chilensis Philippi, 1887 † (FOSSIL)
cobbani, Thyasira becca cobbani Kauffman (FOSSIL)
compacta, Conchocele compacta Ishizaki, 1942
concentricus, Axinus concentricus Moore, 1861 † - syn of: Isocyprina concentrica (Moore, 1861) † (FOSSIL)
conia, Thyasira conia Dall & Simpson, 1901
cookianus, Genaxinus cookianus (Fleming, 1950) † (FOSSIL)
cookianus, Axinulus cookianus Fleming, 1950 † - syn of: Genaxinus cookianus (Fleming, 1950) † (FOSSIL)
cordata, Axinopsida cordata (Verrill & Bush, 1898)
croulinensis, Axinulus croulinensis (Jeffreys, 1847)
croulinensis rotundata, Axinus croulinensis rotundata Locard, 1898 - syn of: Thyasira obsoleta (Verrill & Bush, 1898)
croulinensis transversa, Adontorhina croulinensis transversa (Verrill & Bush, 1898) - syn of: Thyasira obsoleta (Verrill & Bush, 1898)
croulinensis transversa, Axinus croulinensis transversa Locard, 1898 - syn of: Thyasira obsoleta (Verrill & Bush, 1898)
croulinensis truncata, Axinus croulinensis truncata Marshall, 1914 - syn of: Thyasira obsoleta (Verrill & Bush, 1898)
cumingi, Philis cumingi (Fischer, 1861)
cyclia, Adontorhina cyclia Berry, 1947
cygnus, Thyasira cygnus Dall, 1916
dearborni, Parathyasira dearborni (Nicol, 1965)
debilis, Thyasira debilis (Thiele, 1912)
debilis, Genaxinus debilis Thiele, 1912 - syn of: Thyasira debilis (Thiele, 1912)
dilatata, Thyasira dilatata Gaglini, 1991
disjuncta, Thyasira disjuncta Gabb, 1866 - syn of: Conchocele bisecta (Conrad, 1849)
disjuncta ochotica, Thyasira disjuncta ochotica Krishtofovich, 1936 - syn of: Conchocele bisecta (Conrad, 1849)
dubius, Axinus dubius Dautzenberg & Fischer, 1897 - syn of: Thyasira incrassata (Jeffreys, 1876)
dunbari, Thyasira dunbari Lubinsky, 1976
elegans, Thyasira elegans Okutani, 1968
elliptica, Thyasira elliptica (Verrill & Bush, 1898)
emicatus, Spinaxinus emicatus Oliver, 2013
equalis, Parathyasira equalis (Verrill & Bush, 1898)
eumyarius, Axinulus eumyarius (Sars, 1870) † - syn of: Genaxinus eumyarius (Sars, 1870) † (FOSSIL)
eumyarius, Genaxinus eumyarius (Sars, 1870) † (FOSSIL)
eutornus, Thyasira eutornus Tomlin, 1921 - syn of: Afrophysema eutornus (Tomlin, 1921)
excavata plicata, Thyasira excavata plicata Verrill, 1885 - syn of: Channelaxinus perplicatus (Salas, 1996)
excavatus, Channelaxinus excavatus (Dall, 1901)
exintermedius, Leptaxinus exintermedius (Gaglini, 1992)
exintermedius, Thyasira exintermedius Gaglini, 1992 - syn of: Leptaxinus exintermedius (Gaglini, 1992)
falklandica, Thyasira falklandica (Smith, 1885)
ferrugineus, Axinus ferrugineus Locard, 1886 - syn of: Mendicula ferruginosa (Forbes, 1844)
ferrugineus, Axinulus ferrugineus Winckworth, 1932 - syn of: Mendicula ferruginosa (Forbes, 1844)
ferruginosa, Mendicula ferruginosa (Forbes, 1844)
fischeri, Axinus fischeri Locard, 1898 - syn of: Axinus grandis (Verrill & Smith, 1885)
flemingi, Parathyasira flemingi Maxwell, 1992 † (FOSSIL)
flemingi, Maorithyas flemingi Powell, 1955
flexuosa, Thyasira flexuosa (Montagu, 1803)
flexuosa abyssicola, Thyasira flexuosa abyssicola Forbes, 1845
flexuosus polygona, Axinus flexuosus polygona Jeffreys, 1864 - syn of: Thyasira polygona (Jeffreys, 1864)
flexuosus rotunda, Axinus flexuosus rotunda Jeffreys, 1881 - syn of: Thyasira obsoleta (Verrill & Bush, 1898)
folgeri, Thyasira folgeri Wagner & Schilling, 1923 † (FOSSIL)
fuegiensis, Thyasira fuegiensis (Dall, 1890)
fuegiensis, Conchocele fuegiensis (Dall, 1890) - syn of: Thyasira fuegiensis (Dall, 1890)
germanicus, Axinulus germanicus Janssen, 1972 † (FOSSIL)
goodhalli, Thyasira goodhalli Sowerby, 1837 † (FOSSIL)
gouldi striata, Thyasira gouldi striata Sturany, 1896 - syn of: Thyasira striata (Sturany, 1896)
gouldii, Thyasira gouldii Philippi, 1845
grandis, Axinus grandis (Verrill & Smith, 1885)
granulosa, Thyasira granulosa (Monterosato, 1874) - syn of: Parathyasira granulosa (Monterosato, 1874)
granulosa, Parathyasira granulosa (Monterosato, 1874)
hadalis, Axinulus hadalis (Okutani, Fujikura & Kojima, 1999)
hexangulata, Thyasira hexangulata Okutani, 1962
hurumi, Cretaxinus hurumi Hryniewicz & al., 2014 † (FOSSIL)
imamurai, Thyasira imamurai Okutani, 1968
inaegualis, Axinopsida orbiculata inaegualis Sars
inaequalis, Axinulus inaequalis Verrill & Bush, 1898 - syn of: Thyasira gouldii Philippi, 1845
incrassata, Thyasira incrassata (Jeffreys, 1876)
incrassatus, Leptaxinus incrassatus (Jeffreys, 1876)
incrassatus succisa, Thyasira incrassatus succisa Jeffreys, 1876 - syn of: Thyasira succisa (Jeffreys, 1876)
indusarium, Leptaxinus indusarium Oliver & Levin, 2006
induta, Thyasira induta Hedley, 1907 - syn of: Mendicula memorata Iredale, 1924
induta, Mendicula induta Hedley, 1907 - syn of: Mendicula memorata Iredale, 1924
induta, Thyasira induta Von Martens, 1887 - syn of: Mendicula memorata Iredale, 1924
inflata, Mendicula inflata (Payne & Allen, 1991)
inflata, Conchocele inflata (Yabe & Nomura, 1925) † (FOSSIL)
inflata, Thyasira inflata Payne & Allen, 1991 - syn of: Mendicula inflata (Payne & Allen, 1991)
investigatoris, Channelaxinus investigatoris (Smith, 1895)
japonica, Thyasira japonica Adams, 1862
kaireiae, Parathyasira kaireiae Okutani, Fujikura & Kojima, 1999
kamtschatica, Conchocele kamtschatica (L. krishtifovich, 1984) † (FOSSIL)
kanamarui, Thyasira kanamarui Habe, 1951 - syn of: Philis cumingi (Fischer, 1861)
kawamurai, Thyasira kawamurai Habe, 1951
keegani, Adontorhina keegani Barry & McCormack, 2007
kelliaeformis, Thyasira kelliaeformis Okutani, 1962
kolgae, Rhacothyas kolgae Åström & Oliver, 2017
luzonicus, Thyasira luzonicus (Smith, 1895)
lynnae, Adontorhina lynnae Valentich-Scott, 2000
magellanica, Parathyasira magellanica (Dall, 1901)
marama, Maorithyas marama Fleming, 1950
marisae, Axinopsida marisae Welle & Nagel, 2003 † (FOSSIL)
marwicki, Thyasira marwicki Amano, Little, Campbell, Jenkins & Saeth
memorata, Mendicula memorata Iredale, 1924
methanophila, Thyasira methanophila Oliver & Sellanes, 2005
minoensis, Thyasira minoensis Itoigawa, 1960 † (FOSSIL)
minutus, Leptaxinus minutus Verrill & Bush, 1898
miorugosus, Tauraxinus miorugosus Sacco, 1901 † (FOSSIL)
mironovi, Thyasira mironovi Kalishevich, 1981 † (FOSSIL)
miyadii, Maorithyas miyadii Habe, 1951
montanita, Thyasira montanita Olsson, 1931 † (FOSSIL)
motutaraensis, Thyasira motutaraensis Powell, 1935 † (FOSSIL)
nakazawai, Thyasira nakazawai Matsumoto, 1971 † (FOSSIL)
nana, Thyasira nana Khomenko, 1929 † (FOSSIL)
neozelanica, Parathyasira neozelanica Iredale, 1930
nipponica, Thyasira nipponica Yabe & Nomura, 1925 - syn of: Conchocele bisecta (Conrad, 1849)
notosulca, Parathyasira notosulca Stilwell & Zinsmeister, 1992 † (FOSSIL)
novaeguinensis, Conchocele novaeguinensis Okutani, 2002
nuttalii, Thyasira nuttalii Conrad, 1834
nuttallii, Thyasira nuttallii Conrad, 1837 - syn of: Tresus nuttallii (Conrad, 1837)
obliqua, Thyasira obliqua Okutani, 1968
oblonga, Mendicula oblonga (Monterosato, 1878)
obscurus, Axinus obscurus Sowerby, 1821 † - syn of: Schizodus obscurus (Sowerby, 1821) † (FOSSIL)
obsoleta, Thyasira obsoleta (Verrill & Bush, 1898)
ockelmanni, Mendicula ockelmanni (Keuning & Schander, 2010)
ockelmanni, Thyasira ockelmanni Keuning & Schander, 2010 - syn of: Mendicula ockelmanni (Keuning & Schander, 2010)
oliveri, Channelaxinus oliveri Valentich-Scott & Coan, 2012
olssoni, Thyasira olssoni Clark & Durham, 1946 † (FOSSIL)
orbiculata, Axinopsida orbiculata (Sars, 1878)
orbiculata, Thyasira orbiculata Seguenza, 1876 - syn of: Parathyasira granulosa (Monterosato, 1874)
orbiculata inaegualis, Axinopsida orbiculata inaegualis (Sars, 1878)
orbiculata inaequalis, Axinopsida orbiculata inaequalis Verrill & Bush, 1898 - syn of: Axinopsida serricata (Carpenter, 1864)
orbiculata inequalis, Axinopsida orbiculata inequalis Verrill & Bush, 1898 - syn of: Axinopsida serricata (Carpenter, 1864)
otagoensis, Genaxinus otagoensis (Suter, 1913) † (FOSSIL)
otagoensis, Thyasira otagoensis Suter, 1913 † - syn of: Genaxinus otagoensis (Suter, 1913) † (FOSSIL)
ottnangensis, Tauraxinus ottnangensis (Sacco, 1901) † (FOSSIL)
ovata, Mendicula ovata (Verrill & Bush, 1898)
ovoideus, Ascetoaxinus ovoideus (Dall, 1890)
oyamai, Thyasira oyamai Habe, 1962
ozawai, Thyasira ozawai Yokoyama, 1926
pajaroanus, Thyasira pajaroanus Conrad, 1857 † - syn of: Tresus pajaroanus (Conrad, 1857) † (FOSSIL)
parvus, Axinus parvus Brown, 1841 † - syn of: Schizodus schlotheimi (Geinitz, 1841) † (FOSSIL)
patagonica, Thyasira patagonica Zelaya, 2010
pegodonta, Axinopsida pegodonta Stilwell & Zinsmeister, 1992 † (FOSSIL)
peregrina, Thyasira peregrina Iredale, 1930
peroniana, Prothyasira peroniana Iredale, 1930
peroniana peregrina, Thyasira peroniana peregrina Iredale, 1930 - syn of: Thyasira peregrina Iredale, 1930
perplicatus, Channelaxinus perplicatus (Salas, 1996)
peruviana, Thyasira peruviana Olsson, 1931 † (FOSSIL)
pervulgata, Thyasira pervulgata Krishtofovich, 1936 † (FOSSIL)
philippinensis, Axinulus philippinensis Allen, 2015
phrixicus, Spinaxinus phrixicus Oliver, 2013
phrygiana, Thyasira phrygiana Miloslavskaya, 1977
pisum, Adontorhina pisum (Dall, 1908)
pisum, Axinulus pisum Dall, 1908 - syn of: Adontorhina pisum (Dall, 1908)
planata, Thyasira planata (Jeffreys, 1882)
plicata, Thyasira plicata Verrill, 1885 - syn of: Channelaxinus perplicatus (Salas, 1996)
polygona, Thyasira polygona (Jeffreys, 1864)
praebisecta, Thyasira praebisecta Krishtofovich, 1984 † - syn of: Conchocele bisecta (Conrad, 1849) (FOSSIL)
praebisecta quadrata, Thyasira praebisecta quadrata Krishtofovich, 1984 † - syn of: Conchocele bisecta (Conrad, 1849) (FOSSIL)
praebisecta rhomboides, Thyasira praebisecta rhomboides Krishtofovich, 1984 † - syn of: Conchocele bisecta (Conrad, 1849) (FOSSIL)
pucillus, Axinus pucillus Brown, 1841 † - syn of: Schizodus schlotheimi (Geinitz, 1841) † (FOSSIL)
pusillus, Axinus pusillus Sars, 1864 - syn of: Axinulus croulinensis (Jeffreys, 1847)
pygmaea, Mendicula pygmaea (Verrill & Bush, 1898)
pyriformis, Thyasira pyriformis Dall, 1886 - syn of: Axinus grandis (Verrill & Smith, 1885)
quadrata, Conchocele quadrata Yabe & Nomura, 1925 † (FOSSIL)
quatsinoensis, Ascetoaxinus quatsinoensis Oliver & Frey, 2014
rashidi, Thyasira rashidi Abbass, 1972 † (FOSSIL)
redondoensis, Tomburchus redondoensis (Burch, 1941)
resupina, Parathyasira resupina Iredale, 1930
resupina neozelanica, Parathyasira resupina neozelanica Iredale, 1930 - syn of: Parathyasira neozelanica Iredale, 1930
rotunda, Thyasira rotunda Jeffreys, 1881
rubiginosa, Axinopsis rubiginosa Okutani & Izumidate, 1992 - syn of: Mendicula ferruginosa (Forbes, 1844)
saharica, Thyasira saharica Locard, 1898 - syn of: Axinus grandis (Verrill & Smith, 1885)
sarae, Wallerconcha sarae Valentich-Scott & Powell, 2014 † (FOSSIL)
sarsii, Thyasira sarsii (Philippi, 1845)
scarlatoi, Conchocele scarlatoi Ivanova & Moskalets, 1984 - syn of: Conchocele bisecta (Conrad, 1849)
scotiae, Thyasira scotiae Oliver & Drewery, 2014
scotiana, Thyasira scotiana Zelaya, 2009
sculpta, Axinus sculpta (Phillips, 1829) † (FOSSIL)
securus, Axinus securus Shumard, 1859 † - syn of: Schizodus securus (Shumard, 1859) † (FOSSIL)
sentosus, Spinaxinus sentosus Oliver & Holmes, 2006
serricata, Axinopsida serricata (Carpenter, 1864)
similis, Adontorhina similis Barry & McCormack, 2007
simplex, Thyasira simplex (Verrill & Bush, 1898)
snatolensis, Thyasira snatolensis Krishtofovich, 1936 † - syn of: Thyasira pervulgata Krishtofovich, 1936 † (FOSSIL)
snatolensis oligocenica, Conchocele snatolensis oligocenica Krishtofovich, 1936 † - syn of: Thyasira pervulgata Krishtofovich, 1936 † (FOSSIL)
southwardae, Thyasira southwardae Oliver & Holmes, 2006
sphaericosa, Adontorhina sphaericosa Scott, 1986
staufti, Thyasira staufti Olsson, 1931 † (FOSSIL)
striata, Thyasira striata (Sturany, 1896)
subcircularis, Parathyasira subcircularis (Payne & Allen, 1991)
subcircularis, Thyasira subcircularis Payne & Allen, 1991 - syn of: Parathyasira subcircularis (Payne & Allen, 1991)
subequatoria, Thyasira subequatoria Payne & Allen, 1991
suborbiculata, Axinopsida suborbiculata (Adams, 1862)
subovata, Thyasira subovata (Jeffreys, 1881)
subovata minuta, Thyasira subovata minuta Payne & Allen, 1991 - syn of: Thyasira subovata (Jeffreys, 1881)
subquadrata, Axinopsida subquadrata (Adams, 1862)
subtrigona, Thyasira subtrigona Jeffreys, 1858
succisa, Thyasira succisa (Jeffreys, 1876)
sudamericana, Mendicula sudamericana Zelaya, 2010
tanabei, Thyasira tanabei Kiel, Amano & Jenkins, 2008 † (FOSSIL)
taylori, Conchocele taylori Hickman, 2015 † (FOSSIL)
tessaria, Thyasira tessaria Olsson, 1931 † (FOSSIL)
thackergeigeri, Axinulus thackergeigeri Valentich-Scott & Coan, 2012
tokunagai, Thyasira tokunagai (Kuroda & Habe, 1951)
tomasi, Ochetoctena tomasi Oliver, 2014
tortuosa, Thyasira tortuosa (Jeffreys, 1881)
transversa, Adontorhina transversa (Payne & Allen, 1991)
transversa, Mendicula transversa Payne & Allen, 1991 - syn of: Adontorhina transversa (Payne & Allen, 1991)
tricarinata, Thyasira tricarinata Dall, 1916 - syn of: Channelaxinus excavatus (Dall, 1901)
triseriata, Thyasira triseriata Unknown
trisinuata, Thyasira trisinuata (D'Orbigny, 1853)
tumidus, Thyasira tumidus Reeve, 1850 - syn of: Euanodontia ovum (Reeve, 1850)
ultima, Thyasira ultima Payne & Allen, 1991
uncinata, Thyasira uncinata Kalikevich, 1981 † (FOSSIL)
uncinata, Thyasira uncinata Kalishevich, 1981 † (FOSSIL)
undatus, Axinus undatus Brown, 1841 † - syn of: Schizodus schlotheimi (Geinitz, 1841) † (FOSSIL)
unilateralis, Thyasira unilateralis Barnard, 1964
verconis, Parathyasira verconis (Angas, 1877)
verconis, Thyasira verconis Angas, 1877 - syn of: Parathyasira verconis (Angas, 1877)
verrilli, Mendicula verrilli (Payne & Allen, 1991)
victorialis, Thyasira victorialis Melvill, 1899 - syn of: Scabrilucina victorialis (Melvill, 1899)
viridis, Axinopsida viridis Dall, 1901 - syn of: Axinopsida serricata (Carpenter, 1864)
vulcolutre, Thyasira vulcolutre Rodrigues & Oliver, 2008
watsoni, Thyasira watsoni Smith, 1885 - syn of: Bythosphaera watsoni (Smith, 1885)
xylodia, Thyasira xylodia Kiel & Goedert, 2007 † (FOSSIL)
yamakawaensis, Thyasira yamakawaensis Habe, 1949
yamatotaiensis, Maorithyas yamatotaiensis Okutani & Izumidate, 1992 - syn of: Adontorhina cyclia Berry, 1947
zelayai, Adontorhina zelayai Valentich-Scott & Coan, 2012
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