A new genus and thirteen new species of Scaphopoda (Mollusca) from the tropical Pacific Ocean
Author
Scarabino, Victor
Muséum national d’Histoire naturelle, département Systématique et Évolution, case postale 51, 57 rue Cuvier, F- 75231 Paris cedex 05 (France) and Museo Nacional de Historia Natural, Montevideo (Uruguay) victor. scarabino @ mnhn. fr
scarabino@mnhn.fr
Author
Scarabino, Fabrizio
Museo Nacional de Historia Natural, Montevideo (Uruguay)
text
Zoosystema
2010
2010-09-30
32
3
409
423
http://www.bioone.org/doi/abs/10.5252/z2010n3a3
journal article
10.5252/z2010n3a3
1638-9387
4554365
Paradentalium danielleae
n. sp.
(
Fig. 1E, F
)
TYPE MATERIAL
. —
Wallis Island
.
MUSORSTOM 7, stn DW 583,
13°11’S
,
176°14’W
,
330-365 m
,
1 lv
holotype
(
MNHN 22773
)
;
2 lv
, 1 dd
paratypes
(
MNHN 22774
)
.
TYPE
LOCALITY
. —
Wallis Island
,
13°11’S
,
176°14’W
,
330-365 m
(MUSORSTOM 7, stn
DW
583).
ETYMOLOGY. — Named after Danielle Plaçais, a volunteer at MNHN, in recognition for her careful sorting of many expedition samples.
MATERIAL EXAMINED
. — Only
type
material known.
DISTRIBUTION. —
Wallis Island
. Live at
330 m
.
DESCRIPTION
Shell
37.2 mm
long, solid, polished, translucent white, slightly curved.Six smooth, slim primary ribs, the most evident on the dorsal axis,
2 in
dorso-lateral positions and the other 3, less evident, ventrally positioned. Intercostal spaces smooth, straight on posterior third of shell to convex anteriorly.Secondary ribs appear close to apex and all vanish in varying degrees towards the oblique anterior aperture, dorsal sculpture remaining longer while the ventral sculpture vanishes completely. Apex simple, anterior shell section roughly circular with vestige of dorsal rib. Measures of
holotype
: L 37.2, W 2.4-2.6, w 0.6, arc 2 at 14.5 from apex.
REMARKS
The characteristic distribution of the ribs of
P.danielleae
n. sp.
approaches that of
P. rudoi
Scarabino 1995
, from the western Indian Ocean and
P. kabati
Scarabino, 2008
, from
Vanuatu
. The main differences (summarized in
Table 1
) include colour, arc, distance of arc from apex and anterior apertures.
Family
FUSTIARIIDAE Steiner, 1991