Oligochaeta - Wikipedia With around 10,000 known species, the Oligochaeta make up about half of the phylum Annelida These worms usually have few setae (chaetae) or "bristles" on their outer body surfaces, and lack parapodia, unlike polychaeta
Oligochaete | Earthworms, Soil, Ecology | Britannica 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
Oligochaeta - an overview | ScienceDirect Topics 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
Oligochaeta: Anatomy Reproduction | Earth Life 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
Aquatic Earthworm (Oligochaeta) — EcoSpark Learn about the aquatic earthworm (Oligochaeta spp ) benthic macroinvertebrate by exploring the life cycle, feeding habitats, interesting facts and its role in the food chain
An Introduction to Class Oligochaeta - EazyBio Oligochaeta are a subclass of segmented worms that are characterized by having few or no bristles on their outer body surfaces They are hermaphrodites, meaning they have both male and female reproductive organs
Oligochaeta Oligochaeta encompasses an estimated 10,400–11,200 described species distributed across approximately 800 genera and 38 families, representing a substantial portion of annelid biodiversity
Oligochaeta | Great Lakes Center | SUNY Buffalo State College Oligochaeta Oligochaete worms are mounted on slides and identified to species where possible Otherwise, it's noted if the specimen is immature, unidentifiable (due to being an embryo or some other reason), or a fragment