. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 320 MILTON FINGERMAN AND MILDRED E. LOWE The results are presented in Figure 1. As evident from inspection of the figure, RPCH and RPDH were present. The maximal effect of the former preceded that of the latter, the typical situation with extracts of supraesophageal ganglia and circumesophageal connectives (Fingerman, 1957a). The results of the two groups that received extracts were extremely similar, if not identical, since the difference between two consecutive determinations of the average chromatophore stage of the same
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 320 MILTON FINGERMAN AND MILDRED E. LOWE The results are presented in Figure 1. As evident from inspection of the figure, RPCH and RPDH were present. The maximal effect of the former preceded that of the latter, the typical situation with extracts of supraesophageal ganglia and circumesophageal connectives (Fingerman, 1957a). The results of the two groups that received extracts were extremely similar, if not identical, since the difference between two consecutive determinations of the average chromatophore stage of the same group of crayfish may be of a unit, but never more. The sum of the differences between the total of the average chromatophore indices for corresponding LJ O UJ Cd O £3 O cd i O. 0 I 2 HOURS FIGURE 1. Responses of red chromatophores of one-eyed Cambarellus on black and on white backgrounds to the same extract of supraesophageal ganglia, with the circumesophageal connectives attached. Dots and circles, two groups that received the same extract; half-filled circles, control. groups of crayfish was unit for dispersing activity and unit for concentrating activity. Results appreciably different from these values may, therefore, be con- sidered as due to a significant difference in the quantities of chromatophorotropins in the extracts themselves and not to the crayfish used for the assay. Responses of dzuarf crayfish to chromatophorotropins of Cambarellus and Orconectes The aim of this experiment was to compare the effects of extracts of eyestalks and supraesophageal ganglia, with the circumesophageal connectives attached, of dwarf crayfish and Orconectes upon the dark red chromatophores of dwarf 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.
Size: 1561px × 1601px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
