Oligochaeta - Wikipedia
网页Oligochaetes are well-segmented worms and most have a spacious body cavity (coelom) used as a hydroskeleton. They range in length from less than 0.5 mm (0.02 in) up to 2 to 3 metres (6.6 to 9.8 ft) in the 'giant' species such as the giant Gippsland earthworm (Megascolides australis) and the Mekong worm (Amynthas mekongianus). [2]
Oligochaete | Earthworms, Soil, Ecology | Britannica
网页oligochaete, any worm of the subclass Oligochaeta (class Clitellata, phylum Annelida). About 3,500 living species are known, the most familiar of which is the earthworm (q.v.), Lumbricus terrestris. Oligochaetes are common all over the world. They live in the sea, in fresh water, and in moist soil.
Classification and Checklist of Freshwater Oligochaetes (Annelida ...
网页2016年12月15日 · While the classification and checklist presented below is limited in scope to the freshwater oligochaetes occurring in North America north of Mexico, we plan to expand this list (perhaps in a tabular format) to include the marine, estuarine, and brackish-water oligochaetes occurring in all of continental North America, then later add ...
Oligochaeta: Anatomy & Reproduction of Earthworms | Earth Life
网页2020年2月23日 · The Oligochaeta are the second largest group of the Annelida. With 3,100 known species, they make up about one third of the phylum. Within this diversity of species there are aquatic forms – both freshwater and marine – and also many terrestrial species.
Oligochaeta - an overview | ScienceDirect Topics
网页Oligochaeta is a paraphyletic stem group (traditionally treated as a subclass) of the class Clitellata that is separate from the advanced, sucker-bearing clitellates: Hirudinea, Acanthobdellida, and Branchiobdellida. They are sometimes called “earthworms” after their bigger and better-known terrestrial representatives (the so-called megadriles).
Annelida (Clitellata): Oligochaeta, Branchiobdellida, Hirudinida, and ...
网页2010年1月1日 · Introduction to Oligochaeta, Branchiobdellida, Hirudinida, and Acanthobdellida. Freshwater annelids (oligochaetes, branchiobdellidans, leeches, and acanthobdellids) can be found in both standing and flowing water and are often an important component of the aquatic food web.
Taxonomy of Aquatic Oligochaetes - SpringerLink
网页2011年1月1日 · Oligochaete worms have colonized a wide range of aquatic and semi-aquatic habitats and freshwater, brackish and marine benthic communities commonly include several characteristic oligochaete species. These occupy a range of microhabitats in sediments, as well as in aquatic vegetation and decomposed organic matter.
Clitellata: Oligochaeta - ScienceDirect
网页2015年1月1日 · This chapter introduces the Oligochaeta annelids, here treated as a paraphyletic stem group of the class Clitellata separated from the Hirudinea, Acanthobdellida, and Branchiobdellida. It starts by considering the group in a phylogenetic and taxonomic framework, as well as in terms of geographical distribution and diversity.
Global diversity of oligochaetous clitellates (“Oligochaeta ...
网页2007年12月18日 · Oligochaeta sensu stricto, namely clitellates exclusive of branchiobdellids and leeches, occur in marine, estuarine, freshwater and terrestrial environs. About one-third of the almost 5,000 valid species described to date is aquatic.
Global diversity of oligochaetous clitellates (“Oligochaeta ...
网页Oligochaeta sensu stricto, namely clitellates exclusive of branchiobdellids and leeches, occur in marine, estuarine, freshwater and terrestrial environs. About one-third of the almost 5,000 valid species described to date is aquatic.
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