Nassarius granifer
A small, globular ash-white shell with conical tubercles in series.
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Nassarius granifer, commonly known as the granulated dog whelk or granulated nassa, is a species of sea snail with an operculum, a marine gastropod mollusc in the family Nassariidae, the mud snails or dog whelks. Its shell is rather small, ovate, thick and globular, colored ash-white, with a conical, pointed spire composed of six whorls, the lowest much larger than all the others. The body whorl bears conical, distant tubercles arranged in four series, while the upper whorls have only a single row of tubercles.
Scientific classification
- KingdomAnimalia
- PhylumMollusca
- ClassGastropoda
- SubclassCaenogastropoda
- OrderNeogastropoda
- FamilyNassariidae
- GenusNassarius
- SpeciesNassarius granifer
Named by Kiener, 1834
Close relatives
Other species of Nassarius with a Codexery entry.
- Nassarius cinctellus Nassarius cinctellus
- Nassarius comptus Nassarius comptus
- Nassarius crassiusculus Nassarius crassiusculus
- Nassarius deshayesianus Nassarius deshayesianus
- Nassarius distortus Nassarius distortus
- Nassarius dorsatus Nassarius dorsatus
- Nassarius glans Nassarius glans
- Nassarius horridus Nassarius horridus
Sources: Wikipedia taxobox: Nassarius granifer (CC BY-SA 4.0) · order, family and genus agree with WoRMS AphiaID 560218 (CC BY 4.0)
Where the nassarius granifer has been recorded
Each dot is a place where the species has been observed and reported (416 records, half-degree grid) — not a modelled range. 12 inland records left out (institution coordinates).
Map: drawn by Codexery. Data: GBIF occurrence search (records CC0 / CC BY) · Natural Earth basemap (public domain) · place coordinates: Wikipedia (CC BY-SA 4.0)
Quick Facts
- Shell length range
- 10 mm (0.394 in) to 18 mm / 0.709 in
- Family
- Nassariidae
- Common names
- granulated dog whelk, granulated nassa
- Shell color
- ash-white
- Number of whorls
- 6
Facts from the source article.
Background
The shell of Nassarius granifer is ovate, thick, and globular, with a conical, pointed spire. Its six whorls are arranged such that the body whorl is much larger than the others, and its surface is ornamented with conical, distant tubercles disposed in four series.
The base shows a few transverse striae, and the upper whorls carry only a single row of tubercles. The ovate aperture is narrow, emarginated at the upper part where it meets the outer lip, which is thick and striated internally. The columella is arcuated, covering the inner lip, which expands into a white, thick callosity that covers the whole lower surface and a portion of the upper whorls.
More in Marine Snails: Ceriths, Nassas and Conchs
Sources
Compiled from Wikipedia and the sources listed below. Text from Wikipedia is available under CC BY-SA 4.0; this entry is adapted from it.
- Wikipedia: Nassarius granifer (CC BY-SA 4.0).
- Classification: the source article's taxobox; order, family and genus checked against WoRMS, the World Register of Marine Species (CC BY 4.0).
- Occurrence records: GBIF (CC0 / CC BY). Basemap: Natural Earth (public domain).
- Word definitions: the , each quoted from its Wikipedia article.
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