Breeding Season
provided by Egg Characteristics and Breeding Season for Woods Hole Species
Woods Hole, Maine
- bibliographic citation
- Costello, D.P. and C. Henley (1971). Methods for obtaining and handling marine eggs and embryos. Marine Biological Laboratory, Woods Hole, MA (Second Edition)
- author
- Costello, D.P.
- author
- C. Henley
Care of Adults
provided by Egg Characteristics and Breeding Season for Woods Hole Species
Woods Hole, Maine
- bibliographic citation
- Costello, D.P. and C. Henley (1971). Methods for obtaining and handling marine eggs and embryos. Marine Biological Laboratory, Woods Hole, MA (Second Edition)
- author
- Costello, D.P.
- author
- C. Henley
Cleavage and Gastrulation
provided by Egg Characteristics and Breeding Season for Woods Hole Species
Woods Hole, Maine
- bibliographic citation
- Costello, D.P. and C. Henley (1971). Methods for obtaining and handling marine eggs and embryos. Marine Biological Laboratory, Woods Hole, MA (Second Edition)
- author
- Costello, D.P.
- author
- C. Henley
Egg Characteristics
provided by Egg Characteristics and Breeding Season for Woods Hole Species
Woods Hole, Maine
- bibliographic citation
- Costello, D.P. and C. Henley (1971). Methods for obtaining and handling marine eggs and embryos. Marine Biological Laboratory, Woods Hole, MA (Second Edition)
- author
- Costello, D.P.
- author
- C. Henley
Living Material
provided by Egg Characteristics and Breeding Season for Woods Hole Species
Woods Hole, Maine
- bibliographic citation
- Costello, D.P. and C. Henley (1971). Methods for obtaining and handling marine eggs and embryos. Marine Biological Laboratory, Woods Hole, MA (Second Edition)
- author
- Costello, D.P.
- author
- C. Henley
Obtaining Gametes
provided by Egg Characteristics and Breeding Season for Woods Hole Species
Woods Hole, Maine
- bibliographic citation
- Costello, D.P. and C. Henley (1971). Methods for obtaining and handling marine eggs and embryos. Marine Biological Laboratory, Woods Hole, MA (Second Edition)
- author
- Costello, D.P.
- author
- C. Henley
Rate of Development
provided by Egg Characteristics and Breeding Season for Woods Hole Species
Woods Hole, Maine
- bibliographic citation
- Costello, D.P. and C. Henley (1971). Methods for obtaining and handling marine eggs and embryos. Marine Biological Laboratory, Woods Hole, MA (Second Edition)
- author
- Costello, D.P.
- author
- C. Henley
Special comments
provided by Egg Characteristics and Breeding Season for Woods Hole Species
Woods Hole, Maine
- Hertling, H., 1928. Beobachtungen und Versuche an den Eiern von Littorina und Lacuna. Wiss. Meeres. Komm. Unt. Deutsch. Meere, N. F., Abt. Helgoland, 17 (2): 1-49.
- Hertling, H., and W. E. Ankel 1927. Bemerkungen über Laich und Jugendformen von Littorina und Lacuna. Wiss. Meeres. Komm. Unt. Deutsch. Meere, N. F., Abt. Helgoland,.
- Lebour, M. V., 1937. The eggs and larvae of the British prosobranchs with special reference to those living in the plankton. J. Mar. Biol. Assoc., 22: 105-166.
- bibliographic citation
- Costello, D.P. and C. Henley (1971). Methods for obtaining and handling marine eggs and embryos. Marine Biological Laboratory, Woods Hole, MA (Second Edition)
- author
- Costello, D.P.
- author
- C. Henley
Comprehensive Description
provided by Invertebrates of the Salish Sea
Biology/Natural History: Females lay eggs in gelatinous doughnut-shaped masses on seaweeds. The species has a long-lived pelagic larva.
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- Rosario Beach Marine Laboratory
Comprehensive Description
provided by Invertebrates of the Salish Sea
Shells in Family Littorinidae have no siphonal notch. The interior of the shell is not pearly. An operculum is present. The height is greater than the diameter, but not several times greater. The columella has no folds or ridges. Members of subfamily Lacuninae have a slitlike umbilicus between the columella and the body whorl. Lacuna vincta has an aperture which is about half the height of the shell. The shell is tan or brown, with a broad white spiral band and a slightly glossy periostracum. In these specimens, the open umbilicus is between two distinct white longitudinal ridges on the columella. Height to 1.6 cm.
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- Rosario Beach Marine Laboratory
Habitat
provided by Invertebrates of the Salish Sea
Depth Range: Intertidal
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- Rosario Beach Marine Laboratory
Distribution
provided by Invertebrates of the Salish Sea
Geographical Range: Alaska to California; unlikely to be found south of Washington. Also in the north Atlantic.
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- Rosario Beach Marine Laboratory
Habitat
provided by Invertebrates of the Salish Sea
On algae, usually on rocky shores.
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- Rosario Beach Marine Laboratory
Look Alikes
provided by Invertebrates of the Salish Sea
How to Distinguish from Similar Species: Lacuna variegata has brown chevrons instead of the white stripe spiraling down the shell, and is more common on eelgrass. L. vincta also is said to have an unusually wide aperture. The umbilicus of L. variegata is also not between 2 ridges on the columella, as it is in this species.
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Lacuna vincta
provided by wikipedia EN
Lacuna vincta, commonly known as northern lacuna, wide lacuna, northern chink shell,[2] or banded chink shell,[3] is a species of sea snail, a marine gastropod mollusk in the family Littorinidae, the winkles or periwinkles. It is found intertidally and in shallow waters in both the northern Atlantic Ocean and the northern Pacific Ocean. It is a herbivore, feeding on seaweed and diatoms with its toothed radula.
Description
The shell of Lacuna vincta is conical, with five to six smooth whorls and a pointed apex. The aperture is about half the height of the shell or slightly larger. The umbilicus has a prominent groove between two white ridges of columella. The exterior of the shell is pale brown with a broad spiral of white and a glossy periostracum. The interior of the shell is not white and pearly and the aperture can be closed by an operculum.[2][3] The maximum recorded shell length is 13 mm (0.5 in).[4]
Distribution and habitat
The distribution of L. vincta is circumboreal, extending as far south in the Atlantic Ocean as the British Isles and France, and the eastern coast of North America.[3] In the northeastern Pacific its range extends from Alaska to California, but it is seldom found further south than Washington state. It is present on algae on rocky shores, intertidally and down to about 40 m (130 ft).[3] In the British Isles, the larvae settle preferentially on brown seaweed such as Fucus serratus and Laminaria spp. and on short red seaweed such as Lomentaria articulata, as well as on the seagrass Zostera spp.[3] In the Pacific they settle mainly on kelp, eelgrass and surfgrass.[2]
Ecology
L. vincta is a herbivore, grazing on seaweed and on diatoms living on the surface of seagrasses. The radula has 45 to 95 rows of tiny teeth, with about three new rows being formed each day. Two separate types of teeth are produced; if the snail is grazing on seaweed, these newly formed teeth are sharply pointed and are used to tear deeply into the algal frond; if on the other hand, the snail is currently feeding on diatoms growing on seagrass, the new teeth are much blunter and are used to scrape diatoms off the leaves.[2] The new teeth are formed at the back of the radula and work their way forward as the older teeth wear away and are discarded, so it takes some time for the snail's teeth to adjust to a change in diet.[2]
This snail favors sheltered positions and in exposed areas seeks the shelter of crevices or dense patches of seaweed.[3] In unsuitable conditions, such as at times of food shortage or when there are excessive numbers of predators, it can produce a string of mucus which it uses as a "parachute" to help it to drift to a more favorable location.[2]
The sexes are separate in this snail with eggs being laid in a ring on seaweed or seagrasses. They may be laid throughout the year but in some locations, such as the British Isles, they are laid in the spring and early summer after which the adults die. The eggs hatch in about six days and the veliger larvae are planktonic for up to six months before settling on the shallow seabed at a shell-length of about 1 mm (0.04 in).[2] In eastern Canada these juvenile snails have been recorded at a density of 1500 per square meter.[3]
References
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Lacuna vincta: Brief Summary
provided by wikipedia EN
Lacuna vincta, commonly known as northern lacuna, wide lacuna, northern chink shell, or banded chink shell, is a species of sea snail, a marine gastropod mollusk in the family Littorinidae, the winkles or periwinkles. It is found intertidally and in shallow waters in both the northern Atlantic Ocean and the northern Pacific Ocean. It is a herbivore, feeding on seaweed and diatoms with its toothed radula.
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Distribution
provided by World Register of Marine Species
Arctic Ocean to Rhode Island; Alaska to California
North-West Atlantic Ocean species (NWARMS)
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Distribution
provided by World Register of Marine Species
Less frequently the north and west coasts of France On suitable weed-covered shores on all British and Irish coasts
Hayward, P.J. & J.S. Ryland (Eds.). (1990). The marine fauna of the British Isles and North-West Europe: 1. Introduction and protozoans to arthropods. Clarendon Press: Oxford, UK. 627 pp.
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Habitat
provided by World Register of Marine Species
intertidal, infralittoral and circalittoral of the Gulf and estuary
North-West Atlantic Ocean species (NWARMS)
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- WoRMS Editorial Board