. The Biological bulletin. Biology; Zoology; Marine biology. 132 L. M. PASSANO noted, none reached the ecdysis stage, Stage E (Drach, 1939), in less than 9 days after being placed at ° (Fig. 1). The mean proecdysis duration in the post-treatment warm temperature for Groups A and B combined was days with a standard error of the mean of ± days. This is not significantly dif- ferent from the value for Group I crabs which were put directly at ° after eyestalk removal (Fig. 2, shaded bar), although it is shorter. 40 35 - < 30 O H (0 < 25 O (A g 20 Ul o tie a. u 15 o < 10


. The Biological bulletin. Biology; Zoology; Marine biology. 132 L. M. PASSANO noted, none reached the ecdysis stage, Stage E (Drach, 1939), in less than 9 days after being placed at ° (Fig. 1). The mean proecdysis duration in the post-treatment warm temperature for Groups A and B combined was days with a standard error of the mean of ± days. This is not significantly dif- ferent from the value for Group I crabs which were put directly at ° after eyestalk removal (Fig. 2, shaded bar), although it is shorter. 40 35 - < 30 O H (0 < 25 O (A g 20 Ul o tie a. u 15 o < 10 L 5 -. ^CONFIDENCE > INTERVAL GRANGE 10 15 INITIAL TEMPERATURE TREATMENT. °C Figure 2. The effect of various initial temperature treatments on the proecdysis duration of eyestalkless Uca. The shaded horizontal bar represents the confidence interval ( days) for animals put directly into ° C, transposed to the upper, post-treatment, portion of the graph. Group A's exceptional animal molted on the fourth day of post-treatment warm temperature. It showed no limb regeneration whatsoever. Since it is probable that this individual had already commenced proecdysis prior to the beginning of the experiment, the increase in the extremes of proecdysis duration caused by this aberrant animal is shown by a dashed line in Figure 2. Group C, kept at ° for the temperature treatment period, also shows a. 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 Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-; Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report; HighWire Press. Lancaster, Pa. [etc. ] : Lancaster Press, inc. [etc. ]


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