Nassarius olivaceus | |
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Shell of Nassarius olivaceus | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
Subclass: | Caenogastropoda |
Order: | Neogastropoda |
Family: | Nassariidae |
Subfamily: | Nassariinae |
Genus: | Nassarius |
Species: | N. olivaceus |
Binomial name | |
Nassarius olivaceus (Bruguière, 1789) | |
Synonyms [1] | |
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Nassarius olivaceus, common name: the olivaceous nassa, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the nassa mud snails or dog whelks. [1]
The shell size varies between 25 mm and 50 mm
The ovate, conical shell is of a reddish or olive color. It is composed of eight or nine whorls, the lowest of which composes nearly half of the shell. It is smooth, slightly arcuated, and often ornamented upon each whorl with a whitish band. When young, it is marked with convex, longitudinal folds, which are intersected at the base of the body whorl only, by five or six pretty deep transverse striae. Upon the upper whorls the folds are much more close, and also more prominent, than upon the lowest, where they often disappear altogether. The edge of the aperture is whitish, ovate, notched at both ends, the cavity of an ash color. The notch above is small, placed upon the upper edge of the outer lip, where it is contracted to the form of a small canal. The emargination of the base is arched. The outer lip is thick, margined exteriorly, crenulated indistinctly upon the lower edge, and marked within with very distinct, transverse striae. The left lip is continued in front, in a thin leaf which extends a little over the columella. It is smooth interiorly, and edged throughout its whole length with a row of small drops. [2]
This species occurs in the Central and East Indian Ocean off Madagascar, Mozambique, South Africa, Mauritius and Tanzania; off East India, Andaman Islands, Indo-Malaysia, Thailand, the Philippines, Indonesia, New Caledonia, Papua New Guinea, Solomon Islands and Australia (Northern Territory, Queensland)
Nassarius granifer, common name 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.
Tritia reticulata, common name the "netted dog whelk", is a species of small European sea snail, a marine gastropod mollusc in the family Nassariidae, the dog whelks or nassa mud snails.
Phrontis antillara, common name the Antilles nassa, is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks.
Nassarius arcularia, the casket nassa or the little box dog whelk, is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks. It is found in tropical and subtropical coastal waters across the world, inhabiting muddy areas close to the shoreline.
Nassarius coronatus, common name the crown nassa or the coronated dog whelk, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the Nassa mud snails or dog whelks.
Tritia cuvierii, common name the one-banded nassa, is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks.
Nassarius glans, common name the acorn dog whelk, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the Nassa mud snails or dog whelks.
Nassarius globosus, common name the globose nassa, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the Nassa mud snails or dog whelks.
Tritia miga is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the nassa mud snails or dog whelks.
Nassarius distortus, common name : the distorted nassa, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the Nassa mud snails or dog whelks.
Tritia mutabilis, common name : the mutable nassa, is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the nassa mud snails or dog whelks.
Nassarius papillosus, common name : the pimpled nassa, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the nassa mud snails or dog whelks.
Nassarius pullus, common names : black nassa; olive dog whelk; ribbed dog whelk, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the nassa mud snails or dog whelks.
Tritia unifasciata is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks.
Nassarius dorsatus, common name the channeled nassa, is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks.
Nassarius conoidalis, common name the cone-shaped Nassa or the jewelled dog whelk, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the nassa mud snails.
Nassarius crassiusculus, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the Nassa mud snails or dog whelks.
Nassarius pyrrhus, common name the red-banded nassa, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the nassa mud snails or dog whelks.
Nassarius gayii is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the Nassa mud snails or dog whelks.
Nassarius roissyi is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks.
Media related to Nassarius olivaceus at Wikimedia Commons