Dipleurula
Sign in to save400px|thumb|right|Diagrammatic reconstruction of Dipleurula from Encyclopædia Britannica, 1911, adapted from Bather, 1900. Bather drew the creature as crawling on the sea-floor, but echinoderm larvae are usually pelagic (free-floating). The ciliated bands are not drawn. Dipleurula is a hypothetical larva of the ancestral echinoderm. It represents the type of basis of all larval forms of, at least, the eleutherozoans (all echinoderms except crinoids), where the starfish, sea urchins, sea cucumbers and brittle stars belong. The dipleurula is a bilaterally symmetrical, ciliated echinoderm larva (
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Encyclopedic overview
5 sectionsContents
- Etymology
- History
- Structure
- References
- External links
400px|thumb|right|Diagrammatic reconstruction of Dipleurula from Encyclopædia Britannica, 1911, adapted from Bather, 1900. Bather drew the creature as crawling on the sea-floor, but echinoderm larvae are usually pelagic (free-floating). The ciliated bands are not drawn. Dipleurula is a hypothetical larva of the ancestral echinoderm. It represents the type of basis of all larval forms of, at least, the eleutherozoans (all echinoderms except crinoids), where the starfish, sea urchins, sea cucumbers and brittle stars belong. The dipleurula is a bilaterally symmetrical, ciliated echinoderm larva (cilia devoted to movement, feeding and perception).
== Etymology ==
Excerpted from Wikipedia’s “Dipleurula” article, available under the CC BY-SA 4.0 licence.