One of the five radial places from the undersurface of the starfish and comparable echinoderms, from which the pipe feet are protruded and withdrawn.
a-row of pores for the protrusion of appendages like pipe foot.
One of the radical zones of echinoderms, along which run the key nerves, arteries, and water pipes. These zones frequently bear rows of locomotive suckers or tentacles, which protrude from regular pores. In celebrity fishes they take the grooves across the underneath region of the rays.
one of several suckers regarding foot of mites.
In zoology, a row, show, or any other group of perforations within the layer of an echinoderm, as a sea-urchin or starfish, by which tend to be protruded and withdrawn the tube-feet or pedicels.
one of the five areas regarding the undersurface of an echinoderm which the pipe feet are found