. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 330 SAMUEL STOCKTON MILES ish or creamy white in color and an opaque white area is present within the ring of oral tentacles. Frustules somewhat similar to those of Corymorpha can be seen on the foot and posterior region of the hydranth (Plates I and II). These develop into tentacle-like processes of adhesive nature much thinner than the oral and basal tentacles and covered with perisarc. The tip may adhere to some surface such as the bottom of a glass container and the cells connecting it with the foot will degenerate leavi
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 330 SAMUEL STOCKTON MILES ish or creamy white in color and an opaque white area is present within the ring of oral tentacles. Frustules somewhat similar to those of Corymorpha can be seen on the foot and posterior region of the hydranth (Plates I and II). These develop into tentacle-like processes of adhesive nature much thinner than the oral and basal tentacles and covered with perisarc. The tip may adhere to some surface such as the bottom of a glass container and the cells connecting it with the foot will degenerate leaving only the strand of perisarc as anchorage. The young frustules just below the anterior edge of the perisarc are short protrusions while the more posterior frustules form the long anchorage fibers which may extend 3 mm. or more from the foot. S —M. 1 PLATE III. Ddhli/rciiclla farcla, ahoral view of slightly shrunken young medusa, 1 ; side view of normal young medusa, 2; circular canal CC; radial canal, RC; manubrium, M; stomach, S; single tentacle. T; tentacle bulb. 77'; velum, V; nematocyst, N. It is convenient to keep the living specimens for the examination of frustules and reproductive bodies on 75 l>v 50 mm. glass slides in stack- ing finger-bowls. The frustules will anchor the hydranth to the slide overnight so that they may be taken from one finger-bowl to another for changing the water and may be placed in IVtri dishes for examining under the microscope without greatly disturbing them. P>y this means the attachment and movements of the more elongate frustules may be studied. Clusters of medusae (Plate III) and medusae buds are located above. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). An
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
