Fusitriton oregonensis

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Oregon hairy triton
Fusitriton oregonensis 3.jpg
Fusitriton oregonensis 4.jpg
Apertural view of Fusitriton oregonensis (Redfield, 1846) with operculum
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Family: Cymatiidae
Genus: Fusitriton
Species:
F. oregonensis
Binomial name
Fusitriton oregonensis
Redfield, 1846

Fusitriton oregonensis (Oregon hairy triton) is a species of large predatory sea snail, a marine gastropod mollusk in the family Cymatiidae. [1]

Contents

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.

Apertural view of a juvenile with operculum and contracted soft parts visible Fusitriton oregonensis.jpg
Apertural view of a juvenile with operculum and contracted soft parts visible
Abapertural view of the shell. Fusitriton oregonensis 2.jpg
Abapertural view of the shell.

Habitat

This species is common subtidally. [7]

Life habits

Scanning electron microscopic image of immature parasperm lancet (infertile sperm morph) of Fusitriton oregonensis showing the tail brush still present, which later develops into part of the body of the parasperm. It is producing when sperm competition occurs. Fusitriton oregonensis parasperm.png
Scanning electron microscopic image of immature parasperm lancet (infertile sperm morph) of Fusitriton oregonensis showing the tail brush still present, which later develops into part of the body of the parasperm. It is producing when sperm competition occurs.

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.

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<span class="mw-page-title-main">Gastropoda</span> Class of molluscs

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<span class="mw-page-title-main">Veliger</span> Larval stage of some snails

A veliger is the planktonic larva of many kinds of sea snails and freshwater snails, as well as most bivalve molluscs (clams) and tusk shells.

<i>Rapana venosa</i> Species of gastropod

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<i>Calliostoma ligatum</i> Species of gastropod

Calliostoma ligatum, common name the blue top snail, is a small prosobranch trochid gastropod mollusk in the family Calliostomatidae, the Calliostoma top snails.

<i>Monoplex parthenopeus</i> Species of gastropod

Monoplex parthenopeus, common name the giant triton or giant hairy triton, is a species of sea snail, a marine gastropod mollusk in the family Cymatiidae. It preys on other molluscs.

<i>Charonia variegata</i> Species of gastropod

Charonia variegata, the Atlantic triton or Atlantic triton's trumpet, is a species of predatory sea snail, a marine gastropod mollusk in the family Charoniidae, the triton snails, triton shells, or tritons.

Fusitriton brasiliensis is a species of predatory sea snail, a marine gastropod mollusk in the family Cymatiidae.

<i>Monoplex aquatilis</i> Species of gastropod

Monoplex aquatilis, common name the cosmopolitan hairy triton, is a species of predatory sea snail, a marine gastropod mollusk in the family Cymatiidae.

<i>Monoplex pilearis</i> Species of gastropod

Monoplex pilearis, common name the hairy triton, is a species of medium-sized predatory sea snail, a marine gastropod mollusk in the family Cymatiidae.

<i>Monoplex tranquebaricus</i> Species of predatory sea snail

Monoplex tranquebaricus, common name: the West African hairy triton, is a species of predatory sea snail, a marine gastropod mollusk in the family Cymatiidae.

<i>Monoplex trigonus</i> Species of gastropod

Monoplex trigonus, common name the trigonal hairy triton, is a species of predatory sea snail, a marine gastropod mollusk in the family Cymatiidae.

<i>Monoplex vespaceus</i> Species of gastropod

Monoplex vespaceus, common name the dwarf hairy triton, is a species of predatory sea snail, a marine gastropod mollusk in the family Cymatiidae.

<i>Priene scabrum</i> Species of gastropod

Priene scabrum is a species of predatory sea snail, a marine gastropod mollusk in the family Ranellidae, the triton snails, triton shells or tritons.

<i>Linatella caudata</i> Species of gastropod

Linatella caudata, common name : the Girdled triton or Poulsen's Triton, is a species of predatory sea snail, a marine gastropod mollusk in the family Cymatiidae.

<i>Ranularia sarcostoma</i> Species of gastropod

Ranularia sarcostoma, common name : the flesh-coloured hairy triton, is a species of predatory sea snail, a marine gastropod mollusk in the family Cymatiidae.

<i>Argobuccinum</i> Genus of gastropods

Argobuccinum is a genus of predatory sea snails, marine gastropod mollusks in the family Cymatiidae.

<i>Conradia</i> Genus of gastropods

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<i>Margarites pupillus</i> Species of gastropod

Margarites pupillus, common name the puppet margarite or the little margarite, is a species of sea snail, a marine gastropod mollusk in the family Margaritidae, the turban snails.

<i>Kelletia kelletii</i> Species of gastropod

Kelletia kelletii, common name Kellet's whelk, is a species of large sea snail, a whelk, a marine gastropod mollusc in the family Buccinidae, the true whelks.

<i>Halocynthia igaboja</i> Species of sea squirt

Halocynthia igaboja, commonly known as sea hedgehog, bristly tunicate or spiny sea squirt, is a species of tunicate in the family Pyuridae. It is native to the northeastern Pacific Ocean. This species was first described in 1906 by the Japanese marine biologist Asajiro Oka, who gave it the name Cynthia ritteri. It was later transferred to the genus Halocynthia.

References

  1. ↑ Fusitriton oregonensis (Redfield, 1846) . Retrieved through: World Register of Marine Species  on 5 December 2018.
  2. 1 2 State Symbols: Mountains to National Wildlife Refuges, Oregon Blue Book
  3. 1 2 "Fusitriton oregonensis". Gastropods.com. Archived from the original on 2007-09-27. Retrieved 2007-08-16.
  4. ↑ "Harvard University Index of Botanists" . Retrieved 2007-08-16.
  5. ↑ Chapter 186 — State Emblems; State Boundary Archived 2007-03-11 at the Wayback Machine 2017 Oregon Revised Statutes
  6. 1 2 "eNature: Oregon Hairy Triton". eNature. Archived from the original on 2007-09-29. Retrieved 2007-08-16.
  7. ↑ "Washington State University Extension, Intertidal Organisms EZ-ID Guides: Fusitriton oregonensis (Oregon triton)". Archived from the original on 2010-05-31. Retrieved 2007-08-15.
  8. ↑ 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.
  9. ↑ 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. JSTOR   1937514.
  10. ↑ 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. JSTOR   25066631. PMID   17928522 . Retrieved 2009-05-04.
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