Bah. & Shelton
Scaphella gaudiati n.sp.
NOVAPEX 2 (4): 137-140, 20 déc. 2001
Scaphella (Scaphella) gaudiati n.sp.
(Gastropoda: Volutidae: Scaphellinae)
a new volute from the Caribbean Sea
2 Square La Fontaine, 75016 Paris
Douglas N. SHELTON
Alabama Malacological Research Center
2370-G Hillcrest Road #236 Mobile, Alabama 36695 U.S.A.
KEYWORDS. Gastropoda, Scaphella, Volutidae, new species, Caribbean, West Indies.
ABSTRACT. Scaphella (Scaphella) gaudiati n. sp. is described on basis of four spécimens
collected off Saint-Martin (Sint-Maarten) and off Guadeloupe. This new species differs from
other related species in color and pattern and is very distinctive from any other members of the
A récent examination of the genus Scaphella
revealed a previously undescribed species in the
collection of the Laboratoire de Malacologie,
Muséum national d'Histoire naturelle, Paris
(MNHN). Up to now known by only four
spécimens, the species is markedly distinct from
other members of the genus warranting spécifie
The genus Scaphella comprises several related
polytypic taxa, which hâve been the subject of
controversial classification at generic rank as well as
at spécifie identification.
Based upon the shape of the radula, Pilsbry &
Olsson (1953) split Scaphella into three gênera:
-Scaphella s. s. with but a single long narrow cusp;
-Clenchina with a conic central cusp, flanked by two
minute accessory cusps (synonym Rehderia Clench,
-Aurinia H. & A. Adams, 1853 with a pointed
central cusp and two well-developed side cusps.
Weaver & du Pont (1970) and Bayer (1971)
downgraded those three gênera to a subgeneric rank
of Scaphella, pointing out the minor taxonomic
significance of that radula différence, especially
between Clenchina and Scaphella s. s. which are now
Though relegated into synonymy of Scaphella by
Emerson & Old, jr. (1979) and Poppe & Goto
(1992), the subgenus Aurinia deserves to keep its
subspecific status: a chief feature, emphasized by
Pilsbry & Olsson, is the thin callus covering the
ventral side of the shell often incrusting a muddy
deposit. Additional characters such as a complète
tricuspidate radula, light structure of the shell, lack
of fasciole, obsolète columellar plaits. open pattern
of irregularly spaced dots are sufficient to maintain
the polytypic Scaphella duhia (Broderip, 1827) in its
On the contrary, Scaphella s. s. includes species with
a strong shell, a more or less pronounced fasciole, 2
to 4 well-defined columellar plaits, a dense spiral
pattern of dots or bands, and a Y-shaped radula with
or without vestigial side cups.
Based upon thèse conchological characters only,
Scaphella gaudiati can be temporarily placed into
Scaphella s. s., pending additional malacological
Family VOLUTIDAE Rafinesque, 1815
Subfamily SCAPHELLINAE H. and A. Adams,
Genus Scaphella Swainson, 1832
Subgenus: Scaphella s. s.
Scaphella (Scaphella) gaudiati n. sp.
off Islet La Désirade, west Guadeloupe, Lesser
Antilles, in 250 m (fish trap) living on sand and
Holotype (length: 89.0 mm, width: 33.3 mm).
Laboratoire de Malacologie. MNHN, Paris, taken in
fish trap from 250 meters depth, off Islet La
Désirade, west Guadeloupe, by Yvon Adonis