Definitions
from The Century Dictionary.
- A class, superclass, or phylum of animals intermediate between and connecting the invertebrates with the true vertebrates, now made a prime division of chordate animals (see
Chordata ); the ascidians, tunicaries, or sea-squirts.
from the GNU version of the Collaborative International Dictionary of English.
- (Zoöl.) A grand division of the animal kingdom, intermediate, in some respects, between the invertebrates and vertebrates, and in modern classifications considered a subphylum of the vertebrates; called also urochordata. They were formerly classed with acephalous mollusks. The body is usually covered with a firm external tunic, consisting in part of cellulose, and having two openings, one for the entrance and one for the exit of water. The pharynx is usually dilated in the form of a sac, pierced by several series of ciliated slits, and serves as a gill.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun tunicates
Etymologies
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Examples
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Here he adopts the investigations of A. Kowalewsky, and the deductions of Häckel founded upon them, concerning the larva of the ascidiæ, a genus of marine mollusca of the order tunicata, and sees in a cord, to be found in this larva, most decided relationship to the spine of the lancelet fish or amphioxus, the lowest of all the vertebrates, it being yet doubtful whether it belongs at all to the vertebrates.
The Theories of Darwin and Their Relation to Philosophy, Religion, and Morality Rudolf Schmid
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A very curious instance of reduced bracts, developing [641] to unusual size, is afforded by a variety of corn, which is called _Zea Mays cryptosperma_, or _Zea Mays tunicata_.
Species and Varieties, Their Origin by Mutation Hugo de Vries 1891
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The var. _tunicata_, for this same reason, has been considered to be the original wild form, from which the other varieties of corn have originated.
Species and Varieties, Their Origin by Mutation Hugo de Vries 1891
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In this are comprised the six higher stems of the animal kingdom, the annulata and their descendants, the mollusca, echinoderma, articulata, tunicata, and vertebrata.
The Evolution of Man — Volume 1 Ernst Heinrich Philipp August Haeckel 1876
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TrackBack to 'Genomic analysis of Pseudoalteromonas tunicata'.
What You're Doing Is Rather Desperate nsaunders 2008
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X Mttiahw AinSc* Cere$ tunicata ftans k vtraque uedam.
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Mulier tunicata et tutulata ft.d. ra« mum, f. icunculne capiti 1nnixa # ad pedes ftanti.
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