Convolutidae

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Convolutidae
Temporal range: Middle Triassic–Recent
Waminoa on Plerogyra.jpg
Flatworm-like Waminoa sp. on Plerogyra sp.
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Xenacoelomorpha
Order: Acoela
Superfamily: Aberrantospermata
Family: Convolutidae
Graff, 1905
Synonyms
  • Anaperidae Dörjes, 1968
  • Sagittiferidae Kostenko & Mamkaev, 1990

Convolutidae is a family of acoels, belonging to the phylum Xenacoelomorpha. This family contains more than a third of all known acoel species. [2] [3]

Contents

Description

Neochildia fusca Neochildia fusca.jpg
Neochildia fusca

The family Convolutidae includes acoels with a ventral mouth opening and a body-wall musculature composed both dorsally and ventrally of circular, longitudinal, and longitudinal crossover muscle fibers. The ventral body wall also has a group of U-shaped fibers. [2] Most species are symbionts with algae. [2] The anterior end has a cluster of frontal glands, a pair of eyes and a statocyst. The body has pigmented lens. Intestine and excretory system is absent. It is hermaphrodite but protandry is common.

Taxonomy

Genera

There are 26 genera in the family Convolutidae, of which 25 are extant. [4] [5] The type genus is Convoluta.

Species

There are over 100 species recognised in the family Convolutidae: [4]

Notes

    References

    1. 1 2 Knaust, Dirk (2021-10-07). "A microbialite with its entombed benthic community from the Middle Triassic (Anisian-Ladinian) Muschelkalk Group of Germany" . Palaeontographica Abteilung A. 320 (1–3): 1–63. doi:10.1127/pala/2021/0114. ISSN   0375-0442.
    2. 1 2 3 Hooge, M. D.; Tyler, S. (2005). "New tools for resolving phylogenies: a systematic revision of the Convolutidae (Acoelomorpha, Acoela)". Journal of Zoological Systematics and Evolutionary Research. 43 (2): 100–113. doi:10.1111/j.1439-0469.2005.00301.x. ISSN   0947-5745.
    3. ↑ Turbellarian taxonomic database [ permanent dead link ], 2006.
    4. 1 2 Seth Tyler (2010). "Convolutidae". World Register of Marine Species . Retrieved May 29, 2021.
    5. ↑ Nilsson, K.S., Wallberg, A., & Jondelius, U. (2011). "New species of Acoela from the Mediterranean, the Red Sea, and the South Pacific." Zootaxa 2867: 1-31.
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