en Gigantea (flatworm)

Gigantea
	Gigantea gigantea
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Platyhelminthes
Order:	Tricladida
Family:	Geoplanidae
Subfamily:	Geoplaninae
Genus:	Gigantea; Ogren & Kawakatsu, 1990
Type species
	Geoplana gigantea; von Graff, 1899

Gigantea is a genus of land planarians from the Neotropical realm.

Description

Species of Gigantea have a large, broad and flat body. The copulatory apparatus has a permanent penis and the ovovitelline ducts enter the female atrium from below.^[1] This definition, however, is incomplete regarding the anatomical features currently considered in the definition of planarian genera and Gigantea is certainly a heterogeneous genus.^[2]

Etymology

The name Gigantea (Latin for "giant") comes from the specific epithet, gigantea, of the type-species, originally described as Geoplana gigantea due to its large size.^[1]

Species

Currently, there are 14 species assigned to the genus Gigantea:

Gigantea bistriata (Hyman, 1962)
Gigantea cameliae (Furhmann, 1912)
Gigantea chiriquii (Hyman, 1962)
Gigantea gigantea (von Graff, 1899)
Gigantea gouvernoni Jones & Sterrer, 2005
Gigantea idaia (Du Bois-Reymond Marcus, 1951)
Gigantea maupoi Carbayo, 2008
Gigantea montana (Hyman, 1939)
Gigantea picadoi (de Beauchamp, 1912)
Gigantea ronaldsluysi Carbayo, 2023^[3]
Gigantea sandersoni (Prudhoe, 1949)
Gigantea unicolor (Hyman, 1955)
Gigantea urubambensis Negrete, Brusa & Carbayo, 2010
Gigantea vongunteni (Fuhrmann, 1912)

References

^ ^a ^b Ogren, Robert E.; Kawakatsu, Masaharu (1990). "Index to the species of the family Geoplanidae (Turbellaria, Tricladida, Terricola) Part I: Geoplaninae". The Bulletin of Fuji Women's College. Series 2. 28: 79–166.
^ Carbayo, F. (2008). "A new species of land planarian of Gigantea Ogren and Kawakatsu, 1990 (Platyhelminthes, Tricladida, Terricola) from Colombia, with taxonomic remarks on the genus". Italian Journal of Zoology. 75 (1): 85–95. doi:10.1080/11250000701693255. ISSN 1125-0003.
^ Lago-Barcia, D., Álvarez-Presas, M., Riutort, M., Oceguera-Figueroa, A., Carbayo, F. (14 March 2023). "Phylogenetic relationships of the Geoplaninae land planarians (Platyhelminthes, Tricladida) assessed with a total evidence approach, with the description of a new species of Gigantea". Molecular Phylogenetics and Evolution: 107750. doi:10.1016/j.ympev.2023.107750. ISSN 1055-7903.

[Ogren1990-1] Ogren, Robert E.; Kawakatsu, Masaharu (1990). "Index to the species of the family Geoplanidae (Turbellaria, Tricladida, Terricola) Part I: Geoplaninae". The Bulletin of Fuji Women's College. Series 2. 28: 79–166.

[Carbayo2008-2] Carbayo, F. (2008). "A new species of land planarian of Gigantea Ogren and Kawakatsu, 1990 (Platyhelminthes, Tricladida, Terricola) from Colombia, with taxonomic remarks on the genus". Italian Journal of Zoology. 75 (1): 85–95. doi:10.1080/11250000701693255. ISSN 1125-0003.

[Largo-Barcia2023-3] Lago-Barcia, D., Álvarez-Presas, M., Riutort, M., Oceguera-Figueroa, A., Carbayo, F. (14 March 2023). "Phylogenetic relationships of the Geoplaninae land planarians (Platyhelminthes, Tricladida) assessed with a total evidence approach, with the description of a new species of Gigantea". Molecular Phylogenetics and Evolution: 107750. doi:10.1016/j.ympev.2023.107750. ISSN 1055-7903.

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