Oligochaeta (/ ˌɒlɪɡəˈkiːtə, - ɡoʊ -/) [1] is a subclass of soft-bodied animals in the phylum Annelida, which is made up of many types of aquatic and terrestrial worms, including all of the various earthworms.

无附肢。 每一体节上生有刚毛。 刚毛与寡毛纲动物支持运动有关。 本纲动物水栖、陆栖都有，这里着重介绍水生底栖寡毛类。 水栖寡毛类 俗称水蚯蚓 (water angleworm)，大多为世界性分布，是淡水底栖动物的主要组成部分。 [1] 拉丁学名 Oligochaeta 界 动物界 门 ...

寡毛亚纲 （學名： Oligochaeta），又称 贫毛亚纲，是 环节动物门 的一个纲，寡毛类环节动物的头部不明显，感官也不发达；刚毛直接生於體壁，體腔發達，但没有疣足，雌雄同体，直接发育。

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 …

寡毛纲Oligochaeta包括常见的蚯蚓、颤蚓等一类动物，一般认为寡毛类是由海产穴居的原始环节动物侵入淡水及陆地而发展起来的一支，它们以明显的特征独立于多毛类：身体分节但不分区，疣足退化，体表具刚毛，但刚毛的数目远远少于多毛类，因此称寡毛类。

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 ...

Oligochaeta (/ˌɒlɪɡəˈkiːtə, -ɡoʊ-/) is a subclass of animals in the phylum Annelida, which is made up of many types of aquatic and terrestrial worms, and including all of the various earthworms.

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.

外观 移至侧栏隐藏 维基百科，自由的百科全书 Oligochaeta可以指： 寡毛纲 寡毛菊属 这是一个消歧义页，羅列了有相同或相近的标题，但內容不同的条目。

2015年1月1日 · 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 ...