INVERTEBRATE ZOOLOGY IN THREE BOOKS - BOOK 2 - G.I. Shcherbak - 1996

PHYLUM KAMPTOZOA, OR ENTOPROCTA

Kamptozoans are tiny, mostly aquatic, predominantly marine solitary and colonial animals measuring no more than 1 mm in length. About 60 species are known. Kamptozoans have a very simple Structure; their body consists of a calyx and a stalk, with no true body cavity, as the spaces between Organs are filled with parenchyma. There is no Circulatory system. However, the features of their embryonic development and The structure of their larva, which resembles a trochophore, relate this group to other trochophore animals such as Annelids, sipunculans, echiurans, etc. The phylum Kamptozoa includes only a single Class of the same name.

Last update: 13/08/2026

Editorial and Educational Adaptation: This material has been compiled based on the primary/original source text. The project team performed an editorial review, corrected technical inaccuracies, structured sections, and adapted the content for an educational format.

What was processed:

elimination of formatting defects (OCR errors, structural breaks, corrupted characters);
editorial organization of content;
standardization of terminology in accordance with academic sources;
verification of factual statements against the original source text.

All mentions of the author, publication year, and origin of the primary text have been preserved in accordance with the source.