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706 Pasquale Micali & Daniel L. Geiger
in the same sample, we could exclude the pos-
sibility that the Sin. semicostata specimens were
juvenile Sci. costata. In particular Sin. semicostata
differs from Sci. costata by the much more de-
pressed overall shape, the adapically angulated and
flat shoulder as opposed to being horizontally ori-
ented, the stronger and fewer axial ribs, and the
wide umbilicus in Sin. semicostata. Sinezona semi-
costata is much smaller (to 0.67 mm) and the teleo-
conch II consists of about 0.3-0. 5 whorl compared
to up to 1.125 teleoconch II whorls in Sci. costata
growing to 1.7 mm.
Anatoma Woodward, 1859
Type species: Scissurella crispata Fleming, 1828
(M: misidentified; SD: Geiger, 2012)
Anatoma crispata (Fleming, 1828)
Remarks. The species is commonly, but mis-
takenly, indicated as part of the Mediterranean
malacofauna (see Geiger, 2012 for comprehensive
chresonymy). Geiger (2012) questioned some of his
own earlier identifications of those Mediterranean
occurrences, which were made prior to the revision
by Hoisaeter & Geiger (2011), but was unable to
re-evaluate that material prior to publication. Re-
examination of material from USNM has confirmed
”
the earlier suspicion. The following A. “ crispata
lots were re-identified as:
Anatoma aspera (Philippi, 1844): USNM
181621, 181630, 181631, 181600, 181616, 181623,
181620.
Anatoma eximia (Seguenza, 1880): USNM
181597, 181601,181598, 181599.
Anatoma tenuisculpta (Seguenza, 1880): USNM
83386, 126631, 181592.
The A. aspera records confirm the known distri-
bution of the species, with one additional locality
from Crete Island, representing one of the eastern-
most locations.
Anatoma eximia was re-surrected by Geiger
(2012) as a valid species. It was described from
fossil material from Gallina (near Reggio Calabria,
Italy). The depositional environment of Gallina is
well described by DelFAngelo et al. (1998: 139):
the levels described by Seguenza show sign of
gravitational flow and canalization of debris. The
outcrop represents an epibathyal fauna dated to
lower Pleistocene with additional material from the
upper Pliocene and more littoral assemblages, re-
ferred to lower Pleistocene, with cold (or boreal)
guests. More recent works (Ruggiero & Raia, 2014;
La Pema & Vazzana, 2014; Vazzana et al., 2014)
deal with the Calabrian (lower Pleistocene) fauna
and reported the presence of cold guests, such as
Pseudamussium peslutrae (Linnaeus, 1771) = P.
semptemradiatum (O.F. Muller, 1776). The Recent
records of A. eximia are from the Mediterranean
adjacent northeastern Atlantic, with a single record
from the Mediterranean Sea (off Malaga). The new
records are all from the North Atlantic. It appears
that A. eximia should also be considered a cold
guest at the type locality.
The new records of A. tenuisculpta are both
from the North Atlantic as well as the Mediter-
ranean (Sicily).
Anatoma eximia (Seguenza, 1880)
Anatoma tenuisculpta (Seguenza, 1880)
Remarks. The publication date for those two
taxa was erroneously indicated as 1877 by Geiger
(2012), which, however, was the date of acceptance
of the manuscript. Serge Gofas (pers. comm.)
kindly pointed out that error.
DISCUSSION
Despite the Mediterranean Sea being one of the
best-studied bodies ofwater on the planet, including
its malacofauna (e.g., Parenzan, 1970; Sabelli et al.,
1990; Barash & Danin, 1992; Cossignani et al.,
1992; Giannuzzi-Savelli et al., 1994, 1997, 1999,
2001, 2003, 2014; Ardovini & Cossignani, 1999;
Doneddu & Trainito, 2005; Cossignani & Ardovini,
2011; Gofas et al., 2011; Scuderi & Terlizzi, 2012)
new discoveries can still be made. Those are not
necessarily restricted to minute molluscs; the
re-discovery of the abalone species Haliotis
stomatiaeformis (= H. ncglecta ) at Malta island, is
a particularly striking example (Geiger, 1998;
Geiger & Owen, 2001), as well as the cone species
known from that general area Conus vayssierei
(
Pallary, 1906; Conus desidiosus A. Adams, 1853;
Conusfumigatus Hwass in Bruguiere, 1792).