Stacked from 28 images. Method=B (R=8,S=4)
Stacked from 30 images. Method=B (R=8,S=4)
Species ID
OC-SP-0002595
Discovered
Phylum
Mollusca
Species ID
OC-SP-0002595
Provisional Species Name
Zafrona sp_MNHN_IM_2000_40431
Lowest Valid Taxon Name in WoRMS
Zafrona
Lowest Known Rank
Genus
Status
Discovered
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Embargo
No
Kingdom
Animalia
Phylum
Mollusca
Class
Gastropoda
Order
Neogastropoda
Family
Columbellidae
Genus
Zafrona
Taxonomic Remarks
This species belongs to the same group as Z. sp1. It differs from this species by its smaller size, lower number of teleoconch whorls, more pronounced axial and spiral sculpture, more shouldered whorls, weaker sinus and denticles on the inside of the outer lip and a different color pattern.
Received All Minimal Data for Discovery
01/04/2026
Description of Material
Shell of average for the genus, adult size up to 2.9 mm; fusifom, elongate. Rounded whorls, slightly shouldered. Suture slightly impressed. Protoconch paucispiral and elongate, consisting of about 1.2 whorls. First part of protoconch smooth, last part close to the trasition to the teleoconch whit very weak axial cords. Transition to teleoconch clearly visible. Teleoconch consisting of about 3.2-3.3 whorls. Axial sculpture of strong axial ribs with rather wide interspaces of about the same width as the ribs on all whorls. There are 11-12 of these axial ribs on each whorl. Spiral sculpture consisting of narrow, rather thick spiral cords, which overrun the axial sculpture, hereby creating a knobby appearance on the intersections of axial and spiral sculpture . There are three of these cords on the first whorl increasing to four on the penultimate whorl. Last whorl with 8 of these cords, going over in the basal cords, which ventrally range to just below the adapical end of the columella. Aperture average width for the genus, about 44% of shell height. Outside of outer lip slightly thickened, with the continuation of the spiral sculpture. Inside of outer lip with a weak sinus on the adapical end and six rather weak denticles near the edge of the aperture. Columellar callus clearly present, not raised, with a weak ridge of semi-merged denticles. Parietal callus clearly present. Siphonal canal short, open, slightly recurved. Teleoconch whorls off-white with orange-brown irregular spots. Aperture and columella white. Protoconch white with some cream near the nucleus. Height of holotype: 2.7 mm
Ecology
Direct developing species with paucispiral protoconch, so non planctotrophic larvae. Most likely endemic.
Distribution
MNHN SPANBIOS expedition: stn CP5221, 18°41,7’S, 163°06,1’E, 826-850m, 3 dd, 2 dd juv; stn DW5208, 18°08,7’S, 163°07,1’E, 317-338m, 2 dd; stn DW5215, 18°31,1’S, 163°04,6’E, 342-344m, 1 dd; stn DW5238, 18°06,5’S, 163°03,4’E, 254-274m, 5dd (holotype), 1 dd juv; stn DW5239, 18°07,3’S, 163°02’E, 249-251m, 4 dd, 1 dd juv; stn DW5243, 18°00’S, 162°59,7’E, 607-620m, 9 dd, 3 dd juv.
Scientific Name Authorship
Monsecour, Kevin
Stacked from 28 images. Method=B (R=8,S=4)
Stacked from 30 images. Method=B (R=8,S=4)
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