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  2. Planarian - Wikipedia

    en.wikipedia.org/wiki/Planarian

    Planarians are bilaterian flatworms that lack a fluid-filled body cavity, and the space between their organ systems is filled with parenchyma. [5] [13] Planarians lack a circulatory system, and absorb oxygen through their body wall. They uptake food to their gut using a muscular pharynx, and nutrients diffuse to internal tissues.

  3. Geoplanidae - Wikipedia

    en.wikipedia.org/wiki/Geoplanidae

    Geoplanidae is a family of flatworms known commonly as land planarians or land flatworms. [ 2 ] These flatworms are mainly predators of other invertebrates, which they hunt, attack and capture using physical force and the adhesive and digestive properties of their mucus. [ 3 ]

  4. Planaria - Wikipedia

    en.wikipedia.org/wiki/Planaria

    Planaria is a genus of planarians in the family Planariidae. Due to its excellent ability to regenerate, species of Planaria has also been used as model organisms in regeneration studies. [ 1 ] When an individual is cut into pieces, each piece has the ability to regenerate into a fully formed individual. [ 2 ]

  5. Geoplaninae - Wikipedia

    en.wikipedia.org/wiki/Geoplaninae

    The subfamily Geoplaninae was initially defined by Ogren and Kawakatsu (1990) [4] for land planarians which have a broad creeping sole, mouth in the second half of the body, dorsal testes, subepithelial longitudinal musculature well developed and parenchymal longitudinal musculature absent or not well developed.

  6. Geoplana - Wikipedia

    en.wikipedia.org/wiki/Geoplana

    Currently, the genus Geoplana is characterized by having the features described by Ogren & Kawatasu (dorsal testes, a protrusible penis and a female canal entering the genital antrum dorsally) plus several others, such as a slender body with nearly parallel margins, a strongly convex dorsum, monolobulated eyes (i.e., simple and circular, with only one lobe), and a strong muscle tube around the ...

  7. Planariidae - Wikipedia

    en.wikipedia.org/wiki/Planariidae

    About Wikipedia; Contact us; Contribute Help; Learn to edit; Community portal; ... Planariidae is a family of freshwater planarians. The type genus is Planaria ...

  8. Barreirana - Wikipedia

    en.wikipedia.org/wiki/Barreirana

    The genus Barreirana includes land planarians with a small and slender body, usually around 2 cm long or less. The eyes occur along the whole body, covering almost the entire dorsum. The eyes occur along the whole body, covering almost the entire dorsum.

  9. Girardia - Wikipedia

    en.wikipedia.org/wiki/Girardia

    Species of Girardia are very similar to species of other genera of Dugesiidae and few apomorphies that clearly define the genus are known. [1] One of the few exclusive characteristics is the presence of pigment granules in the outer pharyngeal wall.