C. VlLVENS 
Seguenzioidea and Trochoidea from French Polynesia 
Teleoconch up to 6.2 convex whorls, bearing 8 spiral 
granular cords, in two areas of 6 and 2 cords, 
separated by a weak angulation; most adapical and 
two most adapical cords granular, other cords nearly 
smooth. Suture not canaliculated, poorly visible. 
First whorl convex, sculptured by 4 primary spiral 
cords poorly marked, more or less similar in size. On 
second whorl, spiral cords wider, very low, distance 
between cords much smaller than cords; P4 slightly 
stronger, weakly subgranular; other cords smooth; S3 
appearing at end of whorl. On third whorl, angulation 
appearing between S3 and P4; S3 quickly similar to 
P3. 
On fourth whorl, ail cords more elevated; S2 
appearing at begin of whorl, quickly similar to P2; P4 
dividing into two cords, subgranular at mid whorl, 
adapical cord slightly thinner; distance between S3 
and two abapical cords greater than distance between 
other cords; SI appearing at end of whorl by 
séparation from PI. On fifth whorl, PI and SI weakly 
subgranular; two P4 clearly granular with round 
beads. On last whorls, four adapical cords granular 
with prosocline elongated beads; P3 and S3 still nearly 
smooth; two P4 roundly granular, similar in size, 
producing a week peripheral keel; Tl appearing under 
Discussion. Regarding its small size (the well formed 
columellar tooth implies that the studied specimens 
are, at least, shells of young adults) and the general 
shape ot its shell, the new species can only be 
compared to similar in size known species from 
Philippines or French Polynesia. Among them, 
Thcilotia polysarchosa n. sp. is rather close to 
Jujubinus geographicus Poppe, Tagaro & Dekker, 
2006 (Figs 35-36 ) from Philippines and French 
Polynesia (new record in this paper), but this similar 
S3; T2 possibly appearing between two P4 on large 
specimens. 
Aperture subelliptic, slightly prosoclinely elongated 
on large specimens; outer lip with a weak peripheral 
angulation and meeting inner lip with obtuse angle. 
Columella straight, slightly opisthocline to vertical, 
with one blunt tooth at abapical third. 
Base moderately convex, with 12 nearly smooth spiral 
cords; distance between cords smaller than cords; size 
of cords decreasing from outer part of base to inner 
part. 
Umbilicus moderately wide (diameter about 15-16% 
of shell width) and deep, partly covered by expansion 
of columella, funnel shaped with thin axial ridges 
inside. 
Colour of protoconch pinkish white to deep pink; 
teleoconch colour pattern rather variable : ground 
colour reddish brown to orange brown or pinkish 
brown, irregular axial white, light brown or pinkish 
patches; periphery altemating orange and pinkish 
white dashes; umbilical area and inner half of base 
nacreous pink or light red, spiral cords of outer half 
altemating pink and red or orange and pink, or almost 
uniformly pink. 
in size species is slightly more elevated, has a more 
conical shape, 7 (not 8) main granular spiral cords ail 
with rounded beads, a more pronounced suprasutural 
keel and a subcircular aperture without transversal 
élongation. 
Etymology. Obese (Greek : Tco^uaapxoQ, with 
reference to the cyrtoconoidal shape of the moderately 
elevated shell. 
TW 
H 
W 
HA 
H/W 
H/HA 
holotype 
6.2 
4.5 
4.0 
1.3 
1.13 
3.46 
paratype 1 
6.0 
3.7 
3.2 
1.3 
1.16 
2.85 
paratype 2 
6.0 
4.6 
3.8 
1.2 
1.21 
3.83 
paratype 3 
5.9 
3.9 
3.3 
1.1 
1.18 
3.55 
Table 4. - Thalotiapolysarchosa n. sp. : Shells measurements in mm for types. 
45-50. Thalotia polysarchosa n. sp. 45-48. Australes Archipelago, 100 m rBENTHAUS sfn nwi rcmi- dï dh 
Holotype MNHN (24974). 4.5 x 4.0 mm. 47-48. Paratype MNHN(24975 3 7 x 3 2 mm49 Z f K 
Islands, 440 m [TARASOC, stn DW3482], 5.2 x 4.1 mm. 1 * 12 ^ S ° C ' ete 
Marshall, 1995. 51-52. Tarava Seamounts 670-757 m 
DW809], 1 l.èT\S2m^' '°' 9 X 101 mm; 53 ' 54> Southem New Caledonia, 650-730 m [BATHUS 3, stn 
^^r^s\'^r < i.ri i ‘ ,,ype mn ™ ^ t “ 3 ■ «4» m 
s 5 - sSrstom para,ype mnhn - New ca " donia - a, °" * s " rprise - 
16 
