INVERTEBRATE ZOOLOGY - H. I. Shcherbak - 2008

KINGDOM MULTICELLULAR ANIMALS (METAZOA)

SUBKINGDOM TRUE MULTICELLULAR ANIMALS (EUMETAZOA)

SECTION TRIPLOBLASTIC (TRIPLOBLASTICA) OR BILATERAL (BILATERIA) ANIMALS

SUBSECTION SPIRALIA (SPIRALIA)

PHYLUM ANNELIDS (ANNELIDA)

SUBPHYLUM CLITELLATE WORMS (CLITELLATA)

The key Features of the representatives of this subphylum are Hermaphroditism and the presence of a so-called clitellum on certain body segments—a annular thickening containing numerous unicellular glands that secrete mucus.



Last update: 13/08/2026

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