Definitions
from The Century Dictionary.
- An order of worm-like organisms formed by Metchnikoff for the reception of Ichthyidium, a genus by some referred to the Rotifera: so called from the ciliated ventral surface. See Echinoderes, Chætonotus.
from the GNU version of the Collaborative International Dictionary of English.
- noun plural (Zoöl.) A group of small wormlike animals, having cilia on the ventral side. The group is regarded as an ancestral or synthetic one, related to rotifers and annelids.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- proper noun A taxonomic
phylum within thesuperphylum Protostomia — thegastrotrichs .
Etymologies
Sorry, no etymologies found.
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Examples
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Vermalia, at first Gastrotricha (Ichthydina), afterwards Frontonia
The Evolution of Man — Volume 2 Ernst Heinrich Philipp August Haeckel 1876
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(Gastrotricha), little marine and fresh-water worms, about 1/250 to
The Evolution of Man — Volume 2 Ernst Heinrich Philipp August Haeckel 1876
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Further, the cilia that cover the whole surface of the Turbellaria are confined in the Gastrotricha to two ciliated bands (f) on the ventral surface of the oval body, the dorsal surface having bristles.
The Evolution of Man — Volume 2 Ernst Heinrich Philipp August Haeckel 1876
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(Cryptocoela) and Vermalia (Gastrotricha) the acroganglion remains in the epidermis.
The Evolution of Man — Volume 2 Ernst Heinrich Philipp August Haeckel 1876
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Later it resembles the gut of the earliest Vermalia (Gastrotricha).
The Evolution of Man — Volume 2 Ernst Heinrich Philipp August Haeckel 1876
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