lophophore


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Related to lophophore: trochophore

lophophore

the ring of ciliated tentacles around the mouth in polyzoans and brachiopods.
References in periodicals archive ?
To minimize the energy cost of pumping water through their lophophores, he discovered, small brachiopods open their shells to a wide gape.
Effect of larval swimming duration on success of metamorphosis and size of the ancestrular lophophore in Bugula neritina (Bryozoa).
pacifica until 3 days after metamorphosis, though it repeatedly touched, and caused the retraction of, a lophophore on day 2.
These studies suggest that there is little regulation of sperm entry into female zooids, but rather that any conspecific sperm contacting a lophophore is transferred to the maternal coelom.
Colonial nervous control of lophophore retraction in cheilostome bryozoa.
A functional juvenile lophophore and circulatory system develops 2 days post-metamorphosis (Santagata, 2002).
Bryozoans use a ciliated crown of tentacles called a lophophore to create a feeding current that brings water laden with food down through the center of the crown toward the mouth and out through the base (Fig.
Spermatozeugmata generated different patterns of waves depending on whether they were located in the paternal coeloms (visceral and lophophoral), water column, or maternal lophophore. In the paternal visceral coelom and water column, spermatozeugmata generated predominantly the small-amplitude waveform, with periodic reverse-waveform events.
The duration of metamorphosis was defined as the time from eversion of the larval metasomal sac to eversion of the lophophore of the ancestrular polypide.
For each colony we measured lengths, maximum widths [ILLUSTRATION FOR FIGURE 2 OMITTED], lophophore diameters, and number of tentacles per lophophore of seven haphazardly chosen zooids.
Metamorphosis is the time from eversion of the larval metasomal sac to eversion of the lophophore of the ancestrular polypide.
Brachiopods constitute a comparatively small phylum of sessile or sedentary marine invertebrates that possess a calcified shell and a ciliated lophophore used in filter feeding (Hyman, 1959; Williams and Rowell, 1965; Rudwick, 1970).