Boonea bisuturalis
Species of gastropod
From Wikipedia, the free encyclopedia
Boonea bisuturalis (also known as the three-toothed odostome or the two-groove odostome) is a species of small sea snail, a pyramidellid gastropod mollusk or micromollusk in the family Pyramidellidae, the pyrams and their allies. The species is one of eleven known species within the Boonea genus of gastropods.[2]
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| Boonea bisuturalis | |
|---|---|
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| shell of Boonea bisuturalis | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Family: | Pyramidellidae |
| Genus: | Boonea |
| Species: | B. bisuturalis |
| Binomial name | |
| Boonea bisuturalis | |
| Synonyms | |
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This species is ectoparasitic (an external parasite) on various bivalves and other gastropods. It is notorious as a pest on oyster beds. Its preferred hosts are the common periwinkle Littorina littorea, the mud snail Tritia obsoleta and the eastern oyster Crassostrea virginica [3]
Description
The length of the shell varies between 2.8 mm and 5.8 mm. The smooth shell has a light brownish epidermis. The 5-6 whorls of the teleoconch show an impressed revolving line below the suture. The periphery is obtusely angulated.[4]
(Described as Odostomia trifida) The ivory or off-white shell is smooth and glossy. Its length measures 6 mm. The teleoconch contains eight whorls, with about six impressed revolving lines, the one above and two next below the suture wider and more distinct, and ten or twelve very minute lines at the base of the body whorl. The fold is sharp and oblique.[5]
Distribution
This marine species occurs off Gulf of St Lawrence, Canada, and can exceed distribution throughout marine areas ranging from Canada to the state of Delaware, USA. The species is also notable within the Gulf of Maine.
