Planarians

Tricladida

National Science Foundation - Turbellarian Taxonomic Database cc-by-nc-sa-3.0

Tricladida (Planarians) is an order of flatworms. There are 1767 species of Planarians, in 166 genera and 13 families. It includes groups like Rhynchodemidae and Dimarcusidae. They rely on ciliary gliding to move around.

URI: http://eol.org/schema/terms/ciliary_gliding
Definition: a type of locomotion in which an animal moves on a secreted layer of mucus, propelled by the beating of cilia. It is characteristic of small, soft-bodied invertebrates.
Attribution: Martin, G.G. Ciliary gliding in lower invertebrates. Zoomorphologie 91, 249–261 (1978). https://doi.org/10.1007/BF00999814

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EOL has data for 8 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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bilaterally symmetric
- URI: http://purl.obolibrary.org/obo/PATO_0001324
- Definition: being symmetric about a plane running from frontal end to caudal end (head to tail), and having nearly identical right and left halves
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body shape
- URI: http://eol.org/schema/terms/BodyShape
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vermiform
- URI: https://www.wikidata.org/entity/Q7921571
- Definition: shaped like a worm
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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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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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ciliary gliding
- URI: http://eol.org/schema/terms/ciliary_gliding
- Definition: a type of locomotion in which an animal moves on a secreted layer of mucus, propelled by the beating of cilia. It is characteristic of small, soft-bodied invertebrates.
- Attribution: Martin, G.G. Ciliary gliding in lower invertebrates. Zoomorphologie 91, 249–261 (1978). https://doi.org/10.1007/BF00999814
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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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stemmata
- URI: http://purl.obolibrary.org/obo/UBERON_0000046
- Definition: Eye-spots which may be set into a pit to reduce the angles of light that enters, to allow the organism to deduce the angle of incoming light. Lens-like structures may be present, but stemmata, unlike lens eyes, cannot form an image, either for lack of refractive power or retinal resolution.
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Known occurrences, collected specimens and observations of planarians. View this species on GBIF

National Science Foundation - Turbellarian Taxonomic Database cc-by-nc-sa-3.0

Planarian Habitats

The environments in which many planarians species are known to live. Select an environment to see its planarians species checklist.

planarians Habitats

The environments in which many planarians species are known to live. Select an environment to see its planarians species checklist.

planarians includes 10 children: