hirudinea defined in 1951 yearhirudinea - hirudinea;
hirudinea - Leeches, a class of annelids. Marine, freshwater or terrestrial; suckers at anterior and posterior ends; segmentation less clear than in chaetopods, as each segment is superficially subdivided into narrow rings; no chaetae; coelom partially obliterated; hermaphrodite; clitellum; fertilization internal; eggs develop in a cocoon. Some are blood-suckers.
near hirudinea in Knolik
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