. Bulletin of the United States Fish Commission. Fisheries -- United States; Fish-culture -- United States. i6 BULLETIN OF THE BUREAU OF FISHERIES. After the closure of the blastopore the embryo increases in length until it extends more than two-thirds around the greater circumference of the yolk (fig. 36). In some instances, before the time of hatching, the embryo extends entirely around the circum- ference of the yolk. Larval development.—The time required for hatching, as already indicated, is approximately 24 hours. Hatching usually occurs between 6 and 9 o'clock p. m. The. -9r. Please not
. Bulletin of the United States Fish Commission. Fisheries -- United States; Fish-culture -- United States. i6 BULLETIN OF THE BUREAU OF FISHERIES. After the closure of the blastopore the embryo increases in length until it extends more than two-thirds around the greater circumference of the yolk (fig. 36). In some instances, before the time of hatching, the embryo extends entirely around the circum- ference of the yolk. Larval development.—The time required for hatching, as already indicated, is approximately 24 hours. Hatching usually occurs between 6 and 9 o'clock p. m. The. -9r. 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 United States Fish Commission. Washington, The Commission, Govt. Print. Off
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1910, bookyear1913
