Biology:Fusitriton oregonensis
| Oregon hairy triton | |
|---|---|
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| Apertural view of Fusitriton oregonensis (Redfield, 1846) with operculum | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Cymatiidae |
| Genus: | Fusitriton |
| Species: | F. oregonensis
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| Binomial name | |
| Fusitriton oregonensis Redfield, 1846
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Fusitriton oregonensis (Oregon hairy triton) is a species of large predatory sea snail, a marine gastropod mollusk in the family Cymatiidae.[1]
The snail was given its specific name oregonensis (meaning "of Oregon") to honor the Oregon Territory by conchologist John Howard Redfield in 1846.[2][3][4]
It was declared the state seashell of Oregon in 1989 by the 65th Legislative Assembly.[5]
Distribution
The Oregon hairy triton is native to the northwestern coast of North America. The shells are found from Alaska to California , as well as in northern Japan . The shells often wash up on the coast during high tides.[2][3]
Shell description
The shells grow from 8 to 13 centimetres (3 to 5 in) long.[6] The shell is light brown in color and is covered with gray-brown bristly periostracum, hence the name "hairy." The shell is an elongate cone with six whorls (or turns) around a central axis.
Habitat
This species is common subtidally.[7]
Life habits
Little is known of the snail's feeding habits, but they are believed to feed on other mollusks,[6] ascidians ("sea squirts"),[8] and more rarely, sea urchins.[9] The species also holds the record for longest larval development period of any marine invertebrate, able to delay metamorphosis for over 4 years until presented with appropriate habitat.[10] Under laboratory conditions, the larvae showed no signs of senescence at that point. According to some authorities, four years is long enough to drift completely across the Pacific Ocean.
References
- ↑ Fusitriton oregonensis (Redfield, 1846). Retrieved through: World Register of Marine Species on 5 December 2018.
- ↑ 2.0 2.1 State Symbols: Mountains to National Wildlife Refuges, Oregon Blue Book
- ↑ 3.0 3.1 "Fusitriton oregonensis". Gastropods.com. http://www.gastropods.com/3/Shell_1753.html.
- ↑ "Harvard University Index of Botanists". http://asaweb.huh.harvard.edu:8080/databases/botanists?id=102519.
- ↑ Chapter 186 — State Emblems; State Boundary 2017 Oregon Revised Statutes
- ↑ 6.0 6.1 "eNature: Oregon Hairy Triton". eNature. http://www.enature.com/fieldguides/detail.asp?shapeID=1095&curGroupID=9&lgfromWhere=&curPageNum=1.
- ↑ "Washington State University Extension, Intertidal Organisms EZ-ID Guides: Fusitriton oregonensis (Oregon triton)". http://www.beachwatchers.wsu.edu/ezidweb/animals/Fusitriton.htm.
- ↑ Young, C.M. (January 1985). "Abundance patterns of subtidal solitary ascidians in the San Juan Islands, Washington, as influenced by food preferences of the predatory snail Fusitriton oregonensis". Marine Biology 84 (3): 309–321. doi:10.1007/BF00392501.
- ↑ Duggins, David O. (December 1983). "Starfish predation and the creation of mosaic patterns in a kelp-dominated community". Ecology 64 (6): 1610–1619. doi:10.2307/1937514.
- ↑ Strathmann, Megumi F.; Richard R. Strathmann (October 1, 2007). "An extraordinarily long larval duration of 4.5 years from hatching to metamorphosis for teleplanic veligers of Fusitriton oregonensis". The Biological Bulletin 213 (2): 152–159. doi:10.2307/25066631. PMID 17928522. http://www.biolbull.org/cgi/content/full/213/2/152. Retrieved 2009-05-04.
Wikidata ☰ Q3168778 entry
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