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However, because of the homonymy with
Cassidulidae L. Agassiz & Desor, 1847, the
name Cassidulinae Odhner, 1 925, should be
emended (Art. 55.3), e.g. to Cassidulainae,
if it is necessary to have a family-group name
based on Cassidula Gray, but this action can
be done only by the Commission.
Cassiopinae Beurlen, 1967
Reference: Arquivos de Geología [Universidade
do Recife], 5: 3, 10
Type genus: -fCassiope Coquand, 1865
Remarks: Kollmann (1979: 35) independently
introduced Cassiopidae as a nom. nov. pro
Glauconiidae, invalid because its type genus
is a junior homonym.
Cataeginae McLean & Quinn, 1987 [31 July]
Reference: The Nautilus, 101(3): 111
Type genus: Cateeg/s McLean &Ouinn, 1987
Catantostomatinae Wenz, 1938 [March]
Reference: Handbuch derPaläozoologie, 6(1 ):
158
Type genus: -tCatantostoma Sandberger, 1842
Remarks: -idae, Knight, Batten & Yochelson
(in Moore, 1960:213).
Catillinae Gray, 1868 [April]
Reference: Proceedings of the Zoological
Society of London, (1867[3]): 994-995
Type genus: Catillus Gray, 1847
Remarks: Established as "tribe" Catillina, simultaneously
at two successive ranks below
family.
Catinellinae Odhner, 1950 [18 December]
Reference: Proceedings of the Malacological
Society of London, 28(4-5): 200
Type genus: Catinella Pease, 1870
Cavoliniidae d'Orblgny, 1842
Reference: Paléontologie française. Terrains
crétacés, 2:21
Type genus: Cavolinia Bruguière, 1791
Remarks: Invalid: Placed on the Official Index
by Opinion 883 (1969: 28).
Cavoliniidae Gray, 1850 [9 February] (1815)
Reference: Catalogue of the Mollusca in the
collection of the British Museum. Part II,
Pteropoda: 3-4
Type genus: //' Abildgaard, 1791
Remarks: -inae, van der Spool (1967: 81);
-oidea, Bouchet, herein [in place of Euthecosomata,
which is not available as a family-group
name]. Placed on the Official List
by Opinion 883 (1969: 28). When he estab-
NOMENCLÁTOR OF GASTROPOD FAMILIES 45
lished Cavoliniidae, Gray did not cite Hy-
alaeidae; however, Hyalaea and Cavolinia
are synonyms, and Cavoliniidae is maintained
under Art. 40.2, with the precedence
of Hyalaeidae.
Caymanabyssiinae Marshall, 1986 [2 July]
Reference: New Zealand Journal of Zoology,
12(4): 537
Type genus: Caymanabyssia Moskalev, 1976
Cecilioididae Mörch, 1864
Reference: Videnskabelige Meddelelser fra
den Naturhistorisk Forening i Kjöbenhavn,
17-22 (for 1863): 291
Type genus: /// Férussac, 1814
Remarks: Original spelling (family) Caeciliae,
based on Caecilioides, an unjustified emendation
of Cecilioides, the latter placed on the
Official List by Opinion 335 (1955: 56). -inae
[as Caecilianellea], based on Caecilianella
Bourguignat, 1856 [an unjustified emenda-
tion of Cecilioides], Krelinger (1870: 228).
Under Art. 23.9 of the Code, Cecilioididae
Mörch, 1864, is here declared a nomen oblitum
and Ferussaciidae a nomen protectum:
see under Ferussaciidae.
Cecininae Starobogatov, 1983 [after 22 Febru-
ary]
Reference: [in Starobogatov & Sitnikova] Vsesoiuznoe
soveshchanie po izucheniiu molliuskov,
7: 22
Type genus: Cecina A. Adams, 1861
Remarks: Incorrect original spelling Caecininae.
Cepaeini Pfeffer, 1930 [2 January]
Reference: Geologische und Palaeontologische
Abhandlungen, newser., 17(3):
136
Type genus: Cepaea Held, 1837
Remarks: Original spelling Cepaeae.
Cephalaspidea p. Fischer, 1 883 [20 December]
Reference: Manuel de conchyliologie et de
paléontologie conchyliologique, (6): 550
Remarks: Established by Fischer as a taxon
above family rank. Treated as a "Stirps"
[= superfamily] by Thiele (1931 [in 1929-
1935]: 377). Not available as a family-group
name (not based on a genus).
Cephalobrachiinae Pruvot-Fol, 1926 [1 July]
Reference: Résultats des Campagnes Scien-
tifiques du Prince Albert 1er de Monaco, 70:
20
Type genus: Cephalobrachia Bonnevie, 1912
Remarks: Original spelling Cephalobrachinae.