C. VlLVENS 
Seguenzioidea and Trochoidea from French Polynesia 
Discussion. Regarding the straight, vertical columella, 
the rather sharp basal columellar tooth, the obtuse 
angle between inner and outer lip and the narrow 
umbilicus, and taking in account the shape of the new 
species similar to the one of Thalotia ( Odonîotrochus ) 
chlorostoma (Menke, 1843) (despite a very different 
size), the genus Thalotia (as commented by Wilson, 
1993) seems the more appropriate for this new 
species. 
The new species is rather close to Jujubinus hubrechti 
Poppe, Tagaro & Dekker, 2006 (figs 35-36) from 
Philippines, but this similar in size species has a more 
elevated spire, a much stronger adapical spiral cord on 
the shoulder with elongate beads, a much stronger 
peripheral spiral cord with stronger, much rounded 
beads and different colours (green background colour 
instead orange brown). 
Etymology. Tiara shaped (Greek : napa and eiôqQ, 
adjective agreeing with a neutral noun - with reference 
to the general shape of the shell reminding an ancient 
tiara. 
Thalotia khlimax n. sp. 
Colour Figs E1-E2, Figs 37-38 
Type material. Holotype (6.2 x 5.1 mm) MNHN 
(24972). Paratype (5.4 x 4.7 mm) MNHN (24973). 
Type locality. French Polynesia, Australes 
Archipelago, BENTHAUS, stn without data. 
Material examined. French Polynesia, Australes 
Archipelago. BENTHAUS: stn DW 1885, 27°52'S, 
143°33'W, 700-800 m, 1 dd. Stn DW 1903, 27°27’S, 
144°04'W, 400-800 m, I dd sub. - Stn DW1923, 
27°0rS, 146°05 f W, 360-840 m, 1 dd (paratype). - Stn 
DW1961, 23°2FS, 149°34'W, 470-800 m, 1 dd. - Stn 
with no data, 1 lv (holotype), 1 dd sub. 
Distribution. French Polynesia, Australes 
Archipelago, 700-800 (dead). 
Diagnosis. A small white Cantharidinae species with a 
moderately elevated spire and a small subsutural 
Figures 16-30. Scale bars = 1 mm except scale figs 18- 
angulate keel making shoulder; 7 main granular spiral 
cords on last whorl, the two abapical cords slightly 
thinner, doser and separated from the other cords by a 
weakly concave area; slightly convex base with up to 
10 low, smooth to subgranular spiral cords; 
moderately wide, deep umbilicus. 
Description. Shell of small size for the genus (height 
up to 6.2 mm, width up to 5.1 mm), higher than wide, 
rather thin, conical with a small subsutural angulate 
keel making shoulder with gentle to almost horizontal 
slope; spire moderately elevated, height l.lx to 1.2x 
width, 2.8x to 3.9x aperture height; umbilicus narrow 
and deep. 
Protoconch about 100 pm, exserted, without visible 
varix. 
Teleoconch up to 6.1 convex whorls, bearing 7 spiral 
granular cords; 5 adapical cords similar in size and 2 
th inner, close peripheral cords with a concave area 
between two groups. Suture not canaliculated, poorly 
visible. 
First whorl convex, sculptured by 3 primary spiral 
cords P2, P3 and P4 similar in size and evenly pinkish 
coloured; PI appearing at mid whorl, similar to other 
cords. On second whorl, ail cords subgranular; PI, P2 
and P3 thicker, P4 thinner; shoulder appearing with a 
round keel made by P2 at First adapical quarter; 
distance between P3 and P4 greater than distance 
between other cords; S4 appearing at end of whorl, 
similar in size and shape to P4. On third whorl, S3 
appearing, quickly as strong as P3; additional Tl 
appearing at mid whorl on shoulder between suture 
and PI. On fourth whorl, PI thickening; keel more 
angulate and moving adapically to PI; Tl similar in 
size to PI; ail spiral cords granular; distance between 
S3 and P4 still greater than distance between other 
cords, distance between P4 and S4 smaller than 
distance between other cords. On last whorls, T2 
appearing between Tl and PI, similar in size to Tl; 
beads ot ail cords rounded, without interspaces 
between; distance between PI, P2, P3 and S3 similar 
to cords; no interspace between P4 and S4; area 
between S3 and P4 concave, wider than cords, with 
prosocline, racher thick threads. 
- 100 pm. 
16-19. Herpetopomapoichilum n. sp, Société Islands. 16-17. Holotype MNHN P4966Ï 4SS ™ 
DWM^Ïst^mm 041 ’ ^ X2 ' 5 ^ ^ MN ™ (24967) ’ 52 °' 572 m m [TARASOC, stn 
VÜVenS & Hér ° S ’ 2 °° 3, Caled ° nia ’ T ° Uh ° area ’ 5 °^ 62 m [MONTROUZIER, 
f^H erpet0pomacom, Z atum (Pcase ’ 1861 >’ Société ls| ands. 493-540 m [TARASOC, stn DW3429], 3.0 x 
] 4 ~ 2 ^J aCeUchelus f° veolatus (A ' Adams ’ 1851 >’ Société Isla "ds, 380-758 m [TARASOC, stn DW3390], 3.6 x 
26-27. Vaceuchelus sp., Tuamotu Archipelago, 976-997 m [TARASOC, stn DW33491 4 ? v ^ -r 
28-30. Agathodonta sp., Société Islands, 550-700 m [TARASOC, stn DW3499], 5 0 x4 0 mm h™’ 
12 
