Article · Wikipedia archive · Last revised Jul 11, 2026

Stylostomum

Stylostomum is a genus of flatworms in the family Stylostomidae. All species in the genus are found in the boreal and temperate realms north of latitude 36°N and south of latitude 36°S, with the exception of S. mixtomaculatum found in the west coast of India.

Last revised
Jul 11, 2026
Read time
≈ 2 min
Length
360 w
Citations
13
Source
Wikipedia ↗
Stylostomum
Stylostomum ellipse from Ría de Arousa, Spain
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Platyhelminthes
Order: Polycladida
Suborder: Cotylea
Family: Stylostomidae
Genus: Stylostomum
Lang, 188412
Type species
Planaria ellipsis
Dalyell, 185334
Species

See Taxonomy

Stylostomum is a genus of flatworms in the family Stylostomidae.25 All species in the genus are found in the boreal and temperate realms north of latitude 36°N and south of latitude 36°S, with the exception of S. mixtomaculatum found in the west coast of India.6

Taxonomy

The following species are recognised in the genus Stylostomum:26

  • S. ellipse (Dalyell, 1853)3
  • S. felinum Marcus, 1954
  • S. frigidum Bock, 1931
  • S. fulvum Giard, 1888
  • S. lentum Heath & McGregor, 19127
  • S. mixtomaculatum Pitale & Apte, 20198
  • S. rusticum Giard, 1888
  • S. sanjuania Holleman, 1972
  • S. spanis Holleman, 20014
References

References

  1. Lang, Arnold (1884). "Die Polycladen (Seeplanarien) des Golfes von Neapel und der angrenzenden Meeresabschnitte. Eine Monographie. Fauna Flora Golfes Neapel". Fauna und Flora des Golfes von Neapel. 11. Leipzig: W. Engelmann: I–IX + 1–688. doi:10.5962/bhl.title.10545. Archived from the original on 2025-08-17. Retrieved 2025-09-04 – via Biodiversity Heritage Library.
  2. "World list of turbellarian worms - Stylostomum Lang, 1884". www.marinespecies.org. Retrieved 2025-09-12.
  3. Dalyell, John Graham (1851). The powers of the Creator displayed in the creation; or, Observations on life amidst the various forms of the humbler tribes of animated nature. London: J. Van Voorst. doi:10.5962/bhl.title.21823.
  4. Holleman, J. J. (2001). "A review of the genus Stylostomum Lang, 1884 (Platyhelminthes, Polycladida) and the description of a new species". Belgian Journal of Zoology (Supplement). 131 (1): 227–229.
  5. Dittmann, Isabel L.; Cuadrado, Daniel; Aguado, Maria Teresa; Noreña, Carolina; Egger, Bernhard (2019-12-01). "Polyclad phylogeny persists to be problematic". Organisms Diversity & Evolution. 19 (4): 585–608. Bibcode:2019ODivE..19..585D. doi:10.1007/s13127-019-00415-1. hdl:10261/247677. ISSN 1618-1077.
  6. Tsuyuki, Aoi; Oya, Yuki; Kajihara, Hiroshi (2020-06-26). "First record of Stylostomum ellipse (Dalyell, 1853) (Platyhelminthes, Polycladida) from the Pacific Ocean". Check List. 16 (3): 773–779. doi:10.15560/16.3.773. ISSN 1809-127X.
  7. Heath, Harold; McGregor, Ernest A. (1912). "New Polyclads from Monterey Bay, California". Proceedings of the Academy of Natural Sciences of Philadelphia. 64: 455–488. ISSN 0097-3157. JSTOR 4063474.
  8. Pitale, Reshma; Apte, Deepak (2019-08-08). "Intertidal Euryleptid polyclads and description of a new Stylostomum Lang, 1884 from Maharashtra, India". Zootaxa. 4652 (2). doi:10.11646/zootaxa.4652.2.5. ISSN 1175-5334.