rotifer's Usage Examples:

The extraing to foot of rotifers; at, median blastoporic opening of antenna, united by a nerve to br, brain the cloaca leads us to a (letter omitted in B); bl, bladder, re ver y different view, which ceiving ramified kidney in B, C, D; finds negative support f, foot, and f.

The most common type of rotifer found in these habitats is usually the bdelloid type, which moves somewhat like a leech.

Female rotifer trapped by the fungus The rotifer is being viewed from ' above ' and her tail is pointing into the screen.

The whole ovary is unilateral and unpaired in most rotifers; symmetrical in Asplanchnaceae, Philodinaceae and Seisonaceae.

Thus the rotifer is, as it were, constantly drawn forward into the centre of this vortex ring.

A rotifer may be regarded as typically a hemisphere or half an oblate spheroid or paraboloid with a mouth somewhere on the flat end ("disk" or "corona"), which bears a usually double ciliated ring, the outer zone the "cingulum," and inner the "trochus".

Moreover, the body cavity of the rotifers is a primitive archicoele; the persistent or accrescent cleft between epiblast and hypoblast, traversed by mesenchymal muscular bands.

In most rotifers, on the contrary, the trochus is stronger than the cingulum, often lobed, and with some of its cilia aggregated into vibratile styles homologous with the combplates of Ctenophora (q.

cilium rotifers are less than 0.

As rotifers are common in ponds, the first workers with the microscope observed them repeatedly, the first record being that of John Harris in 1696, who found a Bdelloid in a gallipot that had been standing in his window.

We homologize the rotifer with the Turbellarian larva (fig.

The following classification of rotifers is our modification of that of Hudson and Gosse, further altered through considerations put From H.

The males of rotifers are of relatively rare occurrence, except in the genus A splanchna, where they were first recognized as such by Brightwell in 1841; though those of Hydatina had long since been seen and described as a distinct genus.

Synonyms:

invertebrate, Rotifera, phylum Rotifera,

Antonyms:

vertebrate,