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- For the plant genus Oligochaeta from the sunflower family (Asteraceae): see Oligochaeta (plant)
The Oligochaeta(singular Oligochaete, IPA ) are well-segmented Annelids, most with a spacious coelom that is used as a hydroskeleton. The name means "few-bristled". Their setae (chaetae) or "bristles" are generally few in number and they lack the parapodia of the polychaeta. They have external fertilization, but copulate and store sperm in a receptacle called a spermatheca. Like the leeches, they have a clitellum which secretes a "cocoon" into which both eggs and sperm are deposited and which acts as an incubator for the embryonic worms. They lack a trochophore larval stage.
More on [ Oligochaeta ]
Annelida-> Polychaeta, Oligochaeta, Hirudinae
ziauo (Mumtaziah) Thu, 24 Dec 2009 08:40:30 -0000
Annelida-> Polychaeta, Oligochaeta, Hirudinae
Driveway Oligochaeta http://post.ly/FpbQ
adrianadurian (adriana durian) Tue, 22 Dec 2009 04:52:04 -0000
Driveway Oligochaeta http://post.ly/FpbQ
Earthworm Biology and Production - Information circular from University of Florida, Institute of Food and Agricultural Sciences.
Earthworm Information - Extensive information about individual species, ecology and biology, and role in agriculture.
Oligochaeta - A nice summary of the families of freshwater Oligochaetes found in North America.
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