. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FORM-REGULATION IN CERIANTHUS. 99 with the other reduced tentacles is due to the greater degree of distension of the intermesenterial chambers below them. It may be that these chambers are not completely shut off from the enteric cavity or possibly the pressure of the water in the dis- tended region causes filtration of water into these two chambers. Figs. 4 and 5 illustrate very clearly the relation between char- acteristic form and internal water pressure. November 20. — Twenty seven days after section (Fig. 6).. FIG. 5- T
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FORM-REGULATION IN CERIANTHUS. 99 with the other reduced tentacles is due to the greater degree of distension of the intermesenterial chambers below them. It may be that these chambers are not completely shut off from the enteric cavity or possibly the pressure of the water in the dis- tended region causes filtration of water into these two chambers. Figs. 4 and 5 illustrate very clearly the relation between char- acteristic form and internal water pressure. November 20. — Twenty seven days after section (Fig. 6).. FIG. 5- Terminal marginal tentacles on uncut side 8-9 mm.; on cut side barely visible mm.: lateral marginal tentacles 8-9 mm. Terminal labial tentacles on uncut side 2 mm., on cut side ab- sent : lateral labial tentacles 2 mm. The portion above the lateral cut is much shrivelled while all other parts are fully dis- tended and in good condition. The lateral and terminal discs are now at almost the same level (Fig. 6), the part which origin-. 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. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
