. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 256 RUDOLF S. SCHELTEMA were used at each temperature. Starting with the time at which larval emergence first began, the number of empty egg capsules in each container was determined at frequent intervals. The results obtained in one such experiment are shown by the series of curves in Figure 1, in which the ordinate gives the cumulative percentage of capsules from which larvae had emerged and the abscissa the number of days since the deposition of the capsules. The curves represent development at each of the different tempe
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 256 RUDOLF S. SCHELTEMA were used at each temperature. Starting with the time at which larval emergence first began, the number of empty egg capsules in each container was determined at frequent intervals. The results obtained in one such experiment are shown by the series of curves in Figure 1, in which the ordinate gives the cumulative percentage of capsules from which larvae had emerged and the abscissa the number of days since the deposition of the capsules. The curves represent development at each of the different temper- 100. 16 FIGURE 1. Percentage egg cases of Nassariiis obsolctus from which larvae have emerged relative to the time since spawning occurred. The curves represent development at four different temperatures: ° C. (A); ° C. (O) ; ° C. (D) ; and ° C. «>). The abscissa gives the time in days since the deposition of egg capsules; the ordinate is the cumulative percentage of egg capsules from which larvae have emerged. The values along the abscissa are approximate (± one day) as the egg capsules were laid over a 48-hour 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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