Wairarapa duplaris
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| Wairarapa duplaris | |
|---|---|
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| Original image of a shell of Wairarapa duplaris | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Superfamily: | Conoidea |
| Family: | Drilliidae |
| Genus: | Wairarapa |
| Species: | W. duplaris |
| Binomial name | |
| Wairarapa duplaris (Hedley, 1922) | |
| Synonyms[1] | |
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Wairarapa duplaris is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.[1]
The length of the shell attains 8 mm, its diameter 3 mm.
(Original description) The small, solid shell has a lanceolate shape. Its colour is dull cream, with a faint dorsal zone of brown. It contains 8 whorls, including a two-whorled protoconch. The radial sculpture is smooth and consists of round-backed perpendicular ribs truncated by a smooth and constricted fasciole, amounting to eleven on the penultimate whorl. On the earlier part of the body whorl these ribs are smaller and closer together than previously. Half a whorl behind the aperture is a rough varix, beyond which the ribs cease. The spiral sculpture on the base shows about a dozen fine grooves. Between the suture and the fasciole is a spiral ridge which tends to break up into beads opposite the ribs. The aperture is narrow. The sinus is C-shaped. A thick callus knob occurs at the right insertion.[2]