From Surf Wiki (app.surf) — the open knowledge base

Scolecida

Subclass of annelid worms

Summary

Subclass of annelid worms

:Aeolosomatidae :Arenicolidae :Capitellidae :Cossuridae :Maldanidae :Opheliidae :Orbiniidae :Paraonidae :Parergodrilidae :Potamodrilidae :Psammodrilidae :Questidae :Scalibregmatidae

Scolecida is an infraclass of polychaete worms. Scolecids are mostly unselective deposit feeders on marine detritus.

Characteristics

Scolecids have parapodia with rami that are all alike. The prostomium is distinct. The head has no appendages or palps and is usually conical, though in the Scalibregmatidae, it has a T-shaped tip, and in Paraonidae, there is a single, central antenna. In some families there are sometimes some tiny eyespots. The oesophagus is evertable forming a sac-like proboscis which may have several finger-like lobes. The anterior segments and their appendages are all similar. The notopodia and neuropodia consist of unbranched capillary chaetae, sometimes with hooks. There is a single central gill in Cossuridae on an anterior segment and simple segmental gills are present in some other families.

Systematics

The families Arenicolidae, Capitellidae and Maldanidae were formerly part of the order Capitellida. They are now included in infraclass Scolecida along with Cossuridae, Orbiniidae, Opheliidae, Paraonidae and Scalibregmatidae. This clade is probably not a natural grouping and is likely to be revised in the future.

Subdivisions

Family Aeolosomatidae
Family Arenicolidae
Family Capitellidae
Family Cossuridae
Family Maldanidae
Family Opheliidae
Family Orbiniidae
Family Paraonidae
Family Parergodrilidae
Family Potamodrilidae
Family Psammodrilidae
Family Questidae
Family Scalibregmatidae

References

[http://www.annelida.net/nz/Polychaeta/Clade/clade-scolecida.htm Annelida.net]

Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

polychaetes

Want to explore this topic further?

Ask Mako anything about Scolecida — get instant answers, deeper analysis, and related topics.

Research with Mako

Free with your Surf account

Content sourced from Wikipedia, available under CC BY-SA 4.0.

This content may have been generated or modified by AI. CloudSurf Software LLC is not responsible for the accuracy, completeness, or reliability of AI-generated content. Always verify important information from primary sources.

Report