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Type genus: HydrococcusTh\e\e, 1928
Remarks: -idae, Wenz (1939 [in 1938-1944]:
587).
Hydromylidae Pruvot-Fol, 1942 [20 March]
(1862)
Reference: Dana Report, 20: 7
Type genus: Hydromyles Gistel, 1848
Remarks: Established as a substitute name
for Halopsychidae and Anopsiidae, based on
Halopsyche and Anopsia, both treated by
Pruvot-Fol as junior synonyms of Hydromyles.
However, Hydromyles is also a
senior synonym of Pterocymodocea, and
although Pruvot-Fol cited neither Pterocymodocea
nor Pterocymodoceidae when she
established the name Hydromylidae, the lat-
ter can be treated as a substitute name for
the former. Hydromylidae is in prevailing us-
age; it is conserved under Art. 40.2, with the
precedence of Pterocymodoceidae. -oidea,
Bouchet, herein [in place of Gymnoptera,
which is not available as a family-group
name].
Hygromiinae Tryon, 1866 [6 October]
Reference: American Journal ofConchology,
2(4): 306
Type genus: Hygromia Risso, 1826
Remarks: Placed on the Official List by Direc-
tion 27 (1 955: 484), but attributed in error to
D. Geyer (1909: 11). -idae, Möllendorff
(1898: 147); -ini, Mandahl-Barth (1950: 54);
-oidea, Schileyko (1979a: 57).
Hygrophila Férussac, 1822 [16 February]
Reference: Tableaux systématiques des animaux
mollusques: xxiij
Remarks: Original spelling "Hygrophiles" (ver-
nacular); latinized by Herrmannsen (1847 [in
1846-1852]: 547). Established as a suborder.
Treated by Thiele (1926 [in 1925-1926]:
136) as a "Sippe" [= superfamily] and not
available as such (not based on a genus).
Hylacanthidae. See Hilacanthidae.
Hyperstropheminae Horny, 1964 [November]
Reference: Casopis Narodniho Muzea, Oddil
Phrodovedny, 133(4): 212
Type genus: tHyperstrophema Horny, 1964
Hypobranchiaeidae p. Fischer, 1883 [20 December]
Reference: Manuel de conchyliologie et de
paléontologie conchyliologique, (6): 530
Type genus: Hypobranchiaea A. Adams, 1847
NOMENCLÁTOR OF GASTROPOD FAMILIES 91
Remarks: Hypobranchiaea has traditionally
been treated as a synonym of Corambe, in
which case Hypobranchiaeidae has priority
over Corambidae (but Art. 23.9 may apply).
However, this view was challenged by Martynov
(1994: 13), who concluded that Hypobranchiaea
is unrecognizable and certainly
nota Corambidae.
Hypobranchiata Schweigger, 1820
Reference: Handbuch der Naturgeschichte der
skelettlosen ungegliederten Thiere: 746, 776
Remarks: Latinization of "les inférobranches"
(vernacular) by Cuvier. Taxon including the
genera Diphyllidia and Phyllidia, established
at rank between "order Gastropoda" and ge-
nus. Treated as a family (not available as such:
not based on a genus), spelling emended to
Hypobranchia, by Burmeister (1837: v, 497).
Hypselostomatinae Zilch, 1959 [17 July]
Reference: Handbuch der Paläozoologie, 6(2):
162
Type genus: Hypselostoma Benson, 1856
Remarks: -idae. Azuma (1982: 95). Given precedence
over Aulacospihnae by First Reviser's
choice by Schileyko (1 998 [in 1 998-2003]:
136).
Ianthinidae. See Janthinidae.
Icarinae Gray, 1847 [November]
Reference: Proceedings of the Zoological
Society of London, 15: 163
Type genus: Icarus Forbes, 1844
Remarks: Original spelling Icarina. -idae [in
synonymy of Oxynoeidae], Stoliczka (1868
[in 1867-1871]: 431). See Oxynoeidae.
Iduliidae Iredale & O'Donoghue, 1923 [March]
Reference: Proceedings of the Malacological
Society of London, 15(4): 210
Type genus: Idulia Leach in Gray, 1852
Igarkiellidae Parkhaev, 2001
Reference: Transactions of the Paleontológica!
Institute, Russian Academy of Sciences,
282: 161
Type genus: -tigarkiella Vassiljeva, 1998
Remarks: Also declared new by Parkhaev
(2002: 35).
Ilbiinae Burn, 1963 [September]
Reference: The Australian Zoologist, 13(1): 22
Type genus: libia Burn, 1963
Remarks: -idae. Burn & Thompson (in Beesley
et al., 1998:959).