Classification of Perrilliat 1972

G. †Metulella Gabb 1873
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Subg. Metulella (Thiarinella) Sacco 1890
Fm. Turritellidae Lovén 1847 [turret shell]
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G. Turritella Lamarck 1799 [turret shell]
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Turritella abrupta Spieker 1922
Turritella terebra Linnaeus 1758
G. Vermicularia Lamarck 1799
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Vermicularia spirata Philippi 1836
Fm. Architectonicidae Gray 1850
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G. Architectonica Röding 1798 [sundial]
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Fm. Caecidae Gray 1850
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G. Caecum Fleming 1813
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Caecum anellifer Pilsbry and Johnson 1917
Caecum chipolanum Gardner 1947
Caecum mexicanum Collins 1937
Caecum tomaculum Weisbord 1962
Invalid names: Caecum (Defolinia) Weisbord 1962 [invalid subgroup]
G. Meioceras Carpenter 1858
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Meioceras constrictum Gabb 1873
Subfm. Diodorinae Odhner 1932
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G. Diodora Gray 1821
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Diodora cayenensis Lamarck 1822
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Fm. Fissurellidae Fleming 1822
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Fm. Emarginulinae Gray 1834
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G. Hemitoma Swainson 1840
G. Fissurella Bruguière 1789
Fm. Neritidae Rafinesque 1815
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Subfm. Neritinae Rafinesque 1815
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G. Neritina Lamarck 1816
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Subfm. Smaragdiinae Baker 1923
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G. Smaragdia Issel 1869
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Fm. Rissoidae Gray 1847
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G. Crepitacella Guppy 1867
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Crepitacella cepula Guppy 1866
G. Rissoa Fréminville 1814
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Rissoa epulata Pilsbry and Johnson 1917
Fm. Trochidae Rafinesque 1815 [top snail]
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Subfm. Calliostomatinae Thiele 1924
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G. Calliostoma Swainson 1840
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Subfm. Margaritinae Stoliczka 1868
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G. Microgaza Dall 1881
Fm. Turbinidae Rafinesque 1815
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Subfm. Liotiinae Gray 1850
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G. Liotia Gray 1842
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Liotia woodringi Perrilliat 1972
Fm. Vitrinellidae Bush 1897
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G. Cyclostremiscus Pilsbry and Olsson 1945
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G. †Didianema Woodring 1928
G. Solariorbis Conrad 1865
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Solariorbis boardmani Perrilliat 1972
Solariorbis hypolius Pilsbry and Olsson 1952
G. Teinostoma Adams and Adams 1853
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Subg. †Teinostoma (Idioraphe) Pilsbry 1922
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Subg. Teinostoma (Pseudorotella) Fischer 1857
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Subfm. Vitrinellinae Bush 1897
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G. Vitrinella Adams 1850
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Vitrinella striata Gabb 1873
Subg. Fissurella (Fissurella) Bruguière 1789
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Subg. Microgaza (Microgaza) Dall 1881
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