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Haplotaxida
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Haplotaxida

oligochaete order
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The Information Architects of Encyclopaedia Britannica

Learn about this topic in these articles:

  • structure of polychaetes
    annelid
    / Annotated classification

    Order Haplotaxida Chiefly aquatic worms; male gonopores in segment immediately behind testes; seminal receptacle at or near segment containing testes; size, minute to 1–3 cm; examples of genera: Nais, Tubifex (sludge worm). Class Hirudinea (leeches)

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    Order Haplotaxida Chiefly aquatic worms; male gonopores in segment immediately behind testes; seminal receptacle at or near segment containing testes; size, minute to 1–3 cm; examples of genera: Nais, Tubifex (sludge worm). Class Hirudinea (leeches)

    Read More