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278
under Art. 41 of the Code, the case should be resolved
by the Commission. Dipsaccinae and Latrunculinae are
based on junior synonyms of Babylonia, none of which
has been used in recent decades. However, Latrunculus
has sporadically been used as valid shortly after 1899
(e.g by Cossmann 1901 when he established the sub-
family name), so that Babyloniidae cannot be protected
automatically under Art. 23.9 (Reversal of precedence).
We will submit to the ICZN an application to conserve
the name Babyloniidae.
^''2 Classification of Cystiscidae after Coovert & Coovert
(1995).
^^ Classification of Marginellidae after Coovert & Coovert
(1995).
^65 Classification based on Bändel (2000b) and Bändel &
Dockery (2001), with nomenclatural adjustments.
166 Position of Strepsiduridae doubtful, treated as a family
of Volutoidea by Eames (1 971 ) and as a possible synonym
of Melongeninae by Ponder & Waren (1988),
placed here in Muricoidea on account of conchological
similarity with Melapium.
^^^ Classification of Turbinellidae based on Ponder & Waren
(1988), with the exception of Calliotectinae removed to
Volutidae (Bouchet & Poppe, 1995).
"* Classification of Volutidae after Bail & Poppe (2001 ).
169 Reversal of precedence: see Nomenclátor.
170 ptychatractidae ranked as family after Riedel (2000).
Placement in Pseudolivoidea after Kantor (pers.
comm.).
^^^ Classification based on Taylor et al. (1993) and Rosenberg
(1998) We have not been able to allocate the name
Brachytominae Thiele, 1 929 to currently recognized fam-
ilies
^'^ Siphopsinae transfered to Buccinidae by Schneller
(1997), based on Boreosiphopsis which, however, is
not confamilial with Siphopsis {Le Renard, pers. comm).
'''' Clavatulidae recognised as family based on cladistic
analysis by Rosenberg (1998), although it is not well
differentiated morphologically and is regarded as a subfamily
of Turridae by Kantor (pers. comm.) and Sysoev
(pers. comm.).
^'"' Name based on wrongly identified genus: see Nomen-
'"'^
clátor.
Despite Zonulispirinae not being well discriminated in
the cladistic analysis of Taylor et al. (1993) and Rosen-
berg (1998), it is recognized because of its very dis-
tinctive radula (Kantor & Taylor, 2000).
^^^ = Heterostropha sensu Ponder & Waren (1988).
"'^ Bändel (1 994a) supposed that the Triassic Misurinellidae
are related to the Ellobiidae (Eupulmonata), but later he
(pers. comm,, 2001) thought that they belong to the Allo-
gastropoda.
BOUCHET&ROCROI
^''^ The position of Acteonoidea is still unresolved. Dayrat
et al. (2001 ) found it to be basal within the Euthyneura,
being the sister to a large clade containing most pulmonales
and other opisthobranchs. Conversely, Grande
at al. (2004) found Acteonoidea to be nested within the
Opisthobranchia, being the sister clade to Nudibran-
chia and Pleurobranchoidea.
^^^ Reversal of precedence: see Nomenclátor,
^* Itieriinae placed in Acteonidae by J. Fischer (1997).
Acteonellidae differ from Acteonidae by their large shells
and short columella with plaits.
'^' Contents based on Bändel (1994a). Omalogyridae and
Glacidorbidae included in Architectonicoidea by Bändel
(1997).
'^2 Glacidorbidae placed in Allogastropoda by Haszprunar
(1988) and Dayrat & Tillier (2002), in Basommatophora
by Ponder (1986) and Healy (1995), in Architectonicoidea
by Bändel (1997). In the cladistic analysis of Barker
(2001), they form a clade with the Omalogyroidea +
Architectonicoidea, possibly because of their paedomor-
phic nature.
^83 Contents based on Bändel (1995).
^*' Bändel misidentified the type species of Anoptychia.
therefore the systematic position of the genus and of
Anoptychiidae are uncertain (Nützel, 1998).
^^^ Classification of Nerineoidea original (Kollmann, pers.
comm). Alternative classification, see Lyssenko (1984)
and Lyssenko & Korotkov (1992).
Nerineidae: Shells large, turriculate to elongate oviform,
whorls possessing subsutural notch Aperture angular
at base, with siphonal fascicle. Columella loosely coiled.
Nerineinae: Large, elongate oviform, whorls convex,
with rounded periphery. Columella loosely coiled Base
angular, more or less expanded in abapical direction.
1-2 columellar plaits, 1 parietal plait, 1 palatal plait.
Ptygmatidinae: High turriculate, whorls moderately convex
to concave, periphery angular Columella more or
less broadly hollow. Aperture with siphonal notch, 0-2
columellar plaits, 1-2 parietal plaits, 0-2 palatal plaits
and variable number of small plaits. Plaits may be trun-
cate to bifid.
Nerinellidae: Shell turriculate, small to very large, whorls
flat to concave, with deep subsutural notch, growth lines
sloping backwards at notch, whorl periphery angular.
Aperture with beak or siphonal canal; 0-2 columellar
plaits, 0-1 parietal plait, 0-1 palatal plait
Nerinellinae: Small to medium size, whorls generally
high, whorl periphery angular. Columella solid. Aper-
ture with short siphonal canal or beak; 0-1 columellar
plaits, 0-1 parietal plait, 0-1 palatal plait.
Diptyxinae: Generally large, whorls flat to concave.
Siphonal canal long, twisted; 1-2 columellar plaits, 1
parietal plait, 1 palatal plait
Ceritellidae: High to moderately high turriculate, whorls
flat to convex, with narrow sutural ramp, growth lines
opisthocline, whorl periphery rounded. Columella solid,
smooth. Aperture with short siphonal canal or notch.
^* There has been persistent confusion in the literature
on the extension of the name Nehnea. Cox (1949)