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Urocoptidae Pilsbry, 1898 [3 January] (1868)
Reference: The Nautilus, 11(9): 107
Type genus: Urocoptis Beck, 1837
Remarks: Although Pilsbry did not give reasons
when he established Urocoptidae, he (Pilsb-
ry & Vanatta, 1898b [12 July]: 268) treated
Urocoptis as a senior synonym of Cylindrella
Pfeiffer, and apparently intended to introduce
Urocoptidae as a substitutre name for Cylindrellidae.
Urocoptidae is in prevailing usage.
However, the type species designation of
Cylindrella by Pilsbry (1926b: 70) makes it a
synonym of Brachypodella, and not of Urocoptis.
This is an Art. 41 situation that should
be brought to the ICZN. -inae, Pilsbry (1 902
[in 1902-1903]: 105).
Urocyclidae Simroth, 1889
Reference: Nova Acta, Kaiserlich Leopoldinish-Carolinische
Deutsche Akademie der
Naturforschen 54{^). 62
Type genus: Urocyclus Gray, 1864
Remarks: -inae (Thiele, 1931 [in 1929-1935]:
643); -ini, Schileyko (2002 [in 1998-2003]:
1219).
Urotrematidae Torres Minguez, 1925
Reference: Buttleti de la Institución Catalana
de Historia Natural, ser. 2, 5: 149
Remarks: Not available: not based on a genus.
Usedomellinae Gründel, 1998
Reference: Freiberger Forschungshefte, ser.
, 474(6): 4
Type genus: \Usedomella Gründel, 1998
Vaginulidae Martens, 1866
Reference: The Record of Zoological Literature
[Zoological Record], 2: 269
Type genus: Vaginulus Féxussac, 1821
Remarks: -inae, Cockerell (1891: 216, 220);
-oidea [as -acea], Wenz (1938 [in 1938-
1944]: 68).
Valencienniinae Kramberger-Gorjanovic, 1923
Reference: Glasnik Hrvatskoga Prirodoslovnoga
Drustva, 35(1-2): 94, 98
Type genus: ^Valenciennius Rousseau, 1842
Remarks: Original spelling Valenciennesildae,
based on Valenciennesia P. Fischer, 1859,
an unjustified emendation of Valenciennius.
Introduced explicitly as a subfamily, despite
the suffix -idae. -idae, Korobkov (1 955: 438).
Valloniinae Morse, 1864 [17 March]
Reference: Journal of the Portland Society of
Natural History, 1:5,21
Type genus: Vallonia Risso, 1826
NOMENCLÁTOR OF GASTROPOD FAMILIES 181
Remarks: Original spelling Valloninae. Name
placed on the Official List by Direction 27
(1955: 484), but attributed in error to Pilsbry
(1900: 564). -idae, Pilsbry (1900, ibid.). See
alsoCircinariidae.
Valvatidae Gray, 1840 [between March and
June]
Reference: [A new edition of] A manual of the
land and fresh-water shells of the British Islands
by W. Turton: 79
Type genus: Valvata O. F. Müller, 1774
Remarks: Placed on the Official List by Direction
27 (1955: 484). Authorship sometimes
attributed to W. Thompson ( 1 840 [Sept.]: 1
[as Valvatadae]), which is later, -oidea [as
-oideae], Hannibal (1912a: 196); -inae, Pre-
ston (1915: 95).
Vanikoridae Gray, 1840 [4 November]
Reference: Synopsis of the contents of the British
Museum, ed. 42, 2"^ printing: 121, 152
Type genus: Vanikoro Quoy & Gaimard, 1832
Remarks: Original spelling Vanicoroidae,
based on Vanlcoro Gray, 1840, an unjusti-
fied emendation of Vanikoro. Placed on the
Official List by Opinion 1009 (1974: 159).
-inae [as "subfamily Vanikoridae"], Tryon
(1886: 5); -oidea, Starobogatov (1970: 37).
Vanpalmeriidae Adegoke, 1977 [29 March]
Reference: Bulletins of American Paleontology,
7 ^ (295): 204
Type genus: f Vanpa/mer/a Adegoke, 1977
Varicellini H. B. Baker, 1941 [24 October]
Reference: The Nautilus, 55(2): 52
Type genus: Varicella L. Pfeiffer, 1854
Remarks: Original spelling Varicellarum. -inae,
Abbott (1989: 224).
Varicosa Latreille, 1824 [November]
Reference: Annales des Sciences Naturelles,
3: table between pp. 334-335
Remarks: Original spelling "Variqueux" (ver-
nacular). Latinized by Latreille (1825: 193).
Established as a family and not available as
such (not based on a genus).
VasidaeH. Adams & A. Adams, 1853 [Septem-
ber] (1840)
Reference: The genera of Recent Mollusca,
1:155
Type genus: Vasum Rod i ng, 1798
Remarks: H. Adams & A. Adams considered
Vasum to be a senior synonym of Scolymus
Swainson, 1835, but did not give reasons
why they established Vasidae. Vasidae is