Noun:

தோன்முள்ளி (முட்டோலி),

echinoderm தமிழ் அர்த்தத்தின் உதாரணம்:

None

echinoderm's Usage Examples:

In the animal kingdom it occurs as both calcite and aragonite in the tests of the foraminifera, echinoderms, brachiopoda, and mollusca; also in the skeletons of sponges and corals.

MYZOSTOMIDA, a remarkable group of small parasitic worms which live on crinoid echinoderms; they were first discovered by Leuckart in 1827.

Those plates are perhaps constant throughout sea-urchins and starfish (though it would puzzle any one to detect them in certain Silurian echinoids), and they may be traced in some of the fixed echinoderms; but there is no proof that they represent the radials of a simple crinoid, and there are certainly many cystids in which no such plates existed.

The remaining family may, till further knowledge, be allowed to, cover four remarkable species, three of them resident on Anthozoa, one on an echinoderm.

Which of the coelomic cavities this last is connected with is uncertain, for there is considerable doubt as to the origin of the genital glands in the embryonic development of recent echinoderms.

The Asterocheridae, which have a good swimming capacity, except in the case of Cancerilla tubulata (Dalyell), lead a semi-parasitic life on echinoderms, sponges, 'c.

In some of these respects the Dipleurula may have diverged from the ancestor of Enteropneusta and of other animals, but it could not as yet have been recognized as echinodermal by a zoologist, for it presented none of the structural peculiarities of the modern adult echinoderm.

This echinoderm is a simultaneous hermaphrodite (male gonads and mature eggs occurring together ).

For edible purposes the most valuable of the Japanese echinoderms is the sea-slug or bche de mer (namako), which is greatly appreciated and forms an important staple of export to China.

), who saw in the holothurians a nearer approach to the ancestral form than was furnished by any calyculate echinoderm, and by the Sarasins, who derived the echinoids from the holothurians through forms with flexible tests (Echinothuridae, which, however, are now known to be specialized in this respect).

This creature displays an almost unexampled frequency and extent of distribution in the whole North Sea, in the western parts of the Baltic, near the Faroe Islands, Iceland, Greenland and the English coasts, so that it may be regarded as a characteristic North Sea echinoderm form.

Larvae of other echinoderms are also present in the plankton, like those of sea urchins, sea cucumbers and brittle stars.

Synonyms:

basket star, tube foot, brittle-star, water vascular system, sea cucumber, ambulacrum, basket fish, Echinodermata, holothurian, crinoid, sea star, serpent star, sea urchin, starfish, invertebrate, phylum Echinodermata, brittle star,

Antonyms:

vertebrate,