औपनिवेशिक सिल्टरेट्स जिसमें पॉलीप चरण प्रमुख है

Noun:

जल-सर्प से मिलता-जुलता, पनिहा साँप की तरह, हाइड्राइड,

hydroids's Usage Examples:

In some hydroids the founder-polyp, developed from a planula after fixation, throws out numerous outgrowths from the base to form the hydrorhiza; these outgrowths may be radially arranged so as to form by contact or coalescence a flat plate.

The histology described above for the polyp may be taken as the primitive type, from which that From Allman's G y mnoblastic Hydroids, by permission of the Council of the Ray Society.

The laws of branch formed by similar budding from 1; budding in hydroids a 2 -d 2 from 2, and so forth.

Hence, in a colony of gymnoblastic hydroids, the oldest polyp of each system, that is to say, of the main stem or of a branch, is the topmost polyp; II  ?a ` FIG.

From Allman's Gymnoblastic mnoblastic Hydroids, by permission of the Council of the Ray Society.

The buds may all become detached after a time and give rise to separate and independent individuals, as in the common Hydra, in which only polyp-individuals are produced and sexual elements From Allman's Gymnoblastic Hydroids, by permission of are developed the Council of the Ray Society.

From Allman's Gymnoblastic Hydroids, by permission of the Council of the Ray Society.

Protohydra occurs in oysterbanks and Monobrachium also grows on the shells of bivalves, and both these hydroids probably fish in the currents produced by the lamellibranchs.

In the Calyptoblastea the perisarc is always continued above the From Allman's Gymnoblastic Hydroids, by permission of the Council of the Ray Society.

To establish the exact relationship it is necessary not only to breed but to rear the medusa, which cannot always be done in 1 In some cases hydroids have been reared in aquaria from ova of medusae, but these hydroids have not yet been found in the sea (Browne [Io a]).

hydroids's Meaning':

colonial coelenterates having the polyp phase dominant