| Gemmuloborsonia karubar | |
|---|---|
 | |
| Shell of Gemmuloborsonia karubar (specimen at MNHN, Paris) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Superfamily: | Conoidea |
| Family: | Turridae |
| Genus: | Gemmuloborsonia |
| Species: | G. karubar |
| Binomial name | |
| Gemmuloborsonia karubar Sysoev & Bouchet, 1996 | |
Gemmuloborsonia karubar is a species of sea snail, a marine gastropod mollusk in the family Turridae. [1]
The shell is moderately sized, solid, and fusiform (spindle-shaped) with a tall spire and a relatively short siphonal canal. Its sculpture is distinctive, featuring strong, rounded axial ribs that are crossed by prominent spiral cords, creating a beaded or nodulous appearance at their intersections. The body whorl is convex and comprises about half of the shell's total height. The aperture is ovate and the outer lip is thickened, showing internal varices. The shell color is typically a pale fawn or whitish, sometimes with faint brown banding. The height of the shell attains 28 mm, its diameter 10.2 mm.
Distribution
This species has a disjunct distribution in the tropical western Pacific. This species occurs in the Arafura Sea at depths between 550 m and 620 m; and has also been recorded from the continental slope of the South China Sea. It is a bathyal species, inhabiting the deep-sea floor.
Taxonomy
This species was first described by the malacologists Alexander Sysoev and Philippe Bouchet in 1996. The genus Gemmuloborsonia is notable for its combination of turrid morphological features and is part of the diverse superfamily Conoidea. The specific epithet "karubar" is derived from the name of the French research vessel "KARUBAR," which collected the type specimens during the "Karubar" expedition organized by the Muséum national d'Histoire naturelle in Paris.
Habitat and Ecology
Like other members of the Conoidea, this species is a predatory carnivore. It likely uses a radular tooth and venom to capture and immobilize its prey, which probably consists of marine worms (polychaetes) or other small invertebrates. Its deep-water habitat suggests it is part of the diverse benthic community of the continental slope.
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This species occurs in the Arafura Sea at depths between 550 m and 620 m; on the continental slope of the Chine Sea.
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