Tonna galea: Difference between revisions
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'''''Tonna galea''''' is a very large [[species]] of sea [[snail]] or tun snail, a [[marine (ocean)|marine]] [[gastropod]] [[mollusc]] in the [[family (biology)|family]] [[Tonnidae]], the tun shells. |
'''''Tonna galea''''' is a very large [[species]] of sea [[snail]] or tun snail, a [[marine (ocean)|marine]] [[gastropod]] [[mollusc]] in the [[family (biology)|family]] [[Tonnidae]], the tun shells. |
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== Anatomy == |
== Anatomy == |
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The shell height is up to 200 [[millimetre|mm]], and width up to 157 mm. |
The shell height is up to 200 [[millimetre|mm]], and width up to 157 mm. |
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==References== |
==References== |
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Revision as of 20:42, 15 November 2008
| Tonna galea | |
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| Scientific classification | |
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| Species: | T. galea
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| Binomial name | |
| Tonna galea (Linnaeus, 1758)
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| Synonyms | |
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Buccinum olearium Linnaeus, 1758 | |
Tonna galea is a very large species of sea snail or tun snail, a marine gastropod mollusc in the family Tonnidae, the tun shells.
Distribution
This species is endemic to the Indo-Pacific oceans, north to Japan and south to northern New Zealand.[1]
Habitat
This large sea snail lives at depths of about 35 m.
Anatomy
The snail's saliva contains 2-4 % sulfuric acid, by means of which it kills its prey, starfish.[2]
Shell description
The shell is very large and thin, with a single spiral thread in each interspace of the corrugations.
The shell coloration is uniformly chestnut-brown, except for a fading to white in a broad subsutural band.
The shell height is up to 200 mm, and width up to 157 mm.
References
- ^ Powell A. W. B., William Collins Publishers Ltd, Auckland 1979 ISBN 0-00-216906-1.
- ^ I. O. Alyakrinskaya: Morphofunctional Properties of Nutrition of Certain Predatory Gastropods. Biology Bulletin. ISSN 1062-3590. Vol. 29, no. 6 / November 2002