Timyma

Timyma

Timyma
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Platyhelminthes
Order: Tricladida
Family: Geoplanidae
Tribe: Timymini
Genus: Timyma
E. M. Froehlich, 1978

Timyma is a genus of land planarians from Chile. It is the sole genus of the subfamily Timyminae.

Description

The genus Timyma includes planarians of elongate body and spatula-like anterior end. Although most land planarians native from South America have dorsal testes, Timyma has ventral testes, which at first suggested that it is related to the Australasia species of the tribe Caenoplanini.[1] However, the longitudinal cutaneous musculature of Timyma is very weak, differently from other genera in this tribe.[2] However, molecular studies confirmed that it is more closely related to other land planarians in South America, having a sister-group relationship with the subfamily Geoplaninae.[3] The copulatory apparatus lacks adenodactyls and a permanent penis papilla.

Species

There are currently two species recognised in the genus Timyma:


References

  1. ^ Froehlich, Eudóxia M. (1978). "On a collection of Chilean landplanarians". Boletim de Zoologia, Universidade de São Paulo. 3: 7–80.
  2. ^ Ogren, R. E.; Kawakatsu, M. (1991). "Index to the species of the family Geoplanidae (Turbellaria, Tricladida, Terricola) Part II: Caenoplaninae and Pelmatoplaninae". Bulletin of Fujis Women's College. 29: 35–58.Open access icon
  3. ^ Almeida, Ana Laura; Francoy, Tiago Maurício; Álvarez-Presas, Marta; Carbayo, Fernando (4 February 2021). "Convergent evolution: A new subfamily for bipaliin-like Chilean land planarians (platyhelminthes)". Zoologica Scripta. 50 (4): 500–508. doi:10.1111/zsc.12479. eISSN 1463-6409. ISSN 0300-3256.

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