Lord Howe Island Land Snail

Placostylus bivaricosus (Gaskoin 1855)

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Placostylus bivaricosus (Lord Howe Island Land Snail) is a species of snails in the family Bothriembryontidae. They are listed as critically endangered by IUCN. Individuals can grow to 50.5 mm. They have sexual reproduction.

URI: http://eol.org/schema/terms/criticallyEndangered
Definition: A taxon is Critically Endangered when the best available evidence indicates that it meets \r\nany of the criteria A to E for Critically Endangered, and it is therefore considered to be facing an extremely high risk of extinction in the wild
Source: http://apiv3.iucnredlist.org/api/v3/taxonredirect/17447

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URI: http://purl.obolibrary.org/obo/GO_0019953
Definition: Capable of creating a new organism by combining the genetic material of two gametes, which may come from two parent organisms or from a single organism, in the case of self-fertilizing hermaphrodites.

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EOL has data for 15 attributes, including:

Body symmetry
- URI: http://eol.org/schema/terms/body_symmetry
- Definition: overall repetitive or reflective pattern in the body of one individual of this taxon. eg: bilateral symmetry, rotational symmetry, radial symmetry
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dextrally coiled
- URI: http://eol.org/schema/terms/dextrally_coiled
- Definition: in which the direction of the coil is dextral (right-handed)
- Attribution: https://en.wikipedia.org/wiki/Sinistral_and_dextral
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body length
- URI: http://purl.obolibrary.org/obo/CMO_0000013
- Definition: A measurement of the longest dimension of a body, typically between two distinct ends of the body.
- Attribution: [database_cross_reference: Dorland:Dorlands_Illustrated_Medical_Dictionary--31st_Ed] [database_cross_reference: ISBN:978-1416049982]
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50.5 mm
body volume
- URI: http://eol.org/schema/terms/BodyVolume
- Definition: Volume occupied by the whole body of one individual of this taxon
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10.1 cm^3
cellularity
- URI: http://purl.obolibrary.org/obo/PATO_0001992
- Definition: An organismal quality inhering in a bearer by virtue of the bearers consisting cells. [ PATOC:GVG ]
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multicellular
- URI: http://purl.obolibrary.org/obo/PATO_0001993
- Definition: A cellularity quality inhering in a bearer by virtue of the bearers consisting of more than one cell. [ PATOC:GVG ]
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conservation status
- URI: http://rs.tdwg.org/ontology/voc/SPMInfoItems#ConservationStatus
- Definition: degree of conservation concern as assessed by a government agency or other recognized authority such as IUCN or CITES
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critically endangered
- URI: http://eol.org/schema/terms/criticallyEndangered
- Definition: A taxon is Critically Endangered when the best available evidence indicates that it meets \r\nany of the criteria A to E for Critically Endangered, and it is therefore considered to be facing an extremely high risk of extinction in the wild
- Attribution: http://www.iucnredlist.org/technical-documents/categories-and-criteria
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geographic distribution includes
- URI: http://eol.org/schema/terms/Present
- Definition: This organism is known to be present in this location or region. Not exclusive; other regions may also be reported.
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South Pacific
- URI: http://www.marineregions.org/mrgid/1910
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habitat
- URI: http://rs.tdwg.org/dwc/terms/habitat
- Definition: A category or description of the habitat in which the Event occurred.
- Comment: Example: "oak savanna", "pre-cordilleran steppe"
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terrestrial
- URI: http://purl.obolibrary.org/obo/ENVO_00000446
- Definition: A biome that applies to the terrestrial realm.
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locomotion
- URI: http://purl.obolibrary.org/obo/GO_0040011
- Definition: Self-propelled movement of a cell or organism from one location to another.
- Attribution: [database_cross_reference: GOC:dgh]
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mucus mediated gliding
- URI: https://eol.org/schema/terms/mucus_gliding
- Definition: muscular waves propelling an animal over a mucus layer overlaying the substrate; alternating regions of muscular contraction and expansion create traveling waves that shear the mucus, resulting in translation of the animal.
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reproduction
- URI: http://purl.obolibrary.org/obo/GO_0000003
- Definition: The production of new individuals that contain some portion of genetic material inherited from one or more parent organisms
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sexual reproduction
- URI: http://purl.obolibrary.org/obo/GO_0019953
- Definition: Capable of creating a new organism by combining the genetic material of two gametes, which may come from two parent organisms or from a single organism, in the case of self-fertilizing hermaphrodites.
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type specimen repository
- URI: http://eol.org/schema/terms/TypeSpecimenRepository
- Definition: The institution that holds a type specimen for a given species. The recommended best practice is to use the identifier in a collections registry such as the Biodiversity Collections Index (http://www.biodiversitycollectionsindex.org/).
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Harvard University, Museum of Comparative Zoology
- URI: http://biocol.org/urn:lsid:biocol.org:col:33791
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visual system
- URI: http://purl.obolibrary.org/obo/UBERON_0002104
- Definition: The sensory system subserving the sense of vision.
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lens eyes
- URI: https://eol.org/schema/terms/lens_eyes
- Definition: Relative to pinhole eyes, lens eyes have greatly improved resolution and image brightness. The lens converges incoming rays of light, thereby reducing the angle over which each photoreceptor receives light, and forming an image focused on the retina. Most lens eyes have "accommodation"; they can focus an image either by physically moving the lens toward or away from the retina or by using eye muscles to adjust the shape of the lens.
- Attribution: https://www.britannica.com/science/photoreception/Single-chambered-eyes#ref278819
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wet body mass
- URI: http://eol.org/schema/terms/bodyMassWet
- Definition: Mass of one individual of this taxon, living or fresh, without desiccation
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17.6 g

Known occurrences, collected specimens and observations of Lord Howe Island land snail. View this species on GBIF

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