Stacked from 30 images. Method=B (R=8,S=4)
Stacked from 28 images. Method=B (R=8,S=4)
Species ID
OC-SP-0002570
Discovered
Phylum
Mollusca
Species ID
OC-SP-0002570
Provisional Species Name
Mitrella sp_MNHN_IM_2000_40384
Lowest Valid Taxon Name in WoRMS
Mitrella
Lowest Known Rank
Genus
Status
Discovered
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Embargo
No
Kingdom
Animalia
Phylum
Mollusca
Class
Gastropoda
Order
Neogastropoda
Family
Columbellidae
Genus
Mitrella
Taxonomic Remarks
This species differs from Mitrella neocaledonica Monsecour & Monsecour, 2016 by its slightly smaller size, its protoconch with less whorls, its higher number of denticles on the inside of the outer lip and different form of the aperture on the abapical side near the siphonal canal. It differs from Mitrella minisipho Monsecour & Monsecour, 2016 by its straigher whorls, lower number of teleoconch whorls, absence of axial lines, the clearly present denticles on the inside of the outer lip and the presence of denticles on the columella.
Received All Minimal Data for Discovery
01/04/2026
Description of Material
Shell of small size for the genus, adult size up to 4.4 mm; fusifom, elongate. Rather straight whorls. Suture slightly impressed. Protoconch paucispiral, consisting of about 1.2-1.53 smooth whorls. Transition to teleoconch very weak, almost obsolete. Teleoconch consisting of about 3.75 whorls. Axial sculpture absent, apart from some very weak, hardly visible axial riblets on the beginning of the first teleoconch whorl. Spiral sculpture only consisting of the basal cords which ventrally range to the adapical end of the columella. Aperture average width for the genus, about 42% of shell height. Outside of outer lip with an axial rib and with the continuation of the basal cords on the abapical end. Inside of outer lip without a clear sinus and with 6 denticles of which the most adapical and most abapical are rather strong, the ones in between are very weak. Columellar callus thick, not raised with a rim of semi-merged denticles. Parietal callus very weak, almost obsolete. Siphonal canal short, open, slightly recurved. Teleoconch whorls and aperture slightly translucent white. Columella white. Protoconch white. Height of holotype: 4.4 mm
Ecology
Direct developing species with paucispiral protoconch, so non planctotrophic larvae. Most likely endemic.
Distribution
MNHN Spanbios expedition: stn DW5244, 17°59,3’S, 162°59,8’E, 723-727m, 1 dd. (holotype).
Scientific Name Authorship
Monsecour, Kevin
Stacked from 30 images. Method=B (R=8,S=4)
Stacked from 28 images. Method=B (R=8,S=4)
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