Abstract
THE origin and nature of the membranes which surround the eggs of decapod Crustacea and the means whereby the eggs are attached to the pleopods of the female have both hitherto been obscure. Herrick1,2 gives a good review of the literature. Following up previous work (Yonge3) on the function of the tegumental glands in the decapods, I have found that the eggs are surrounded by two secreted membranes. The inner of these gives positive reactions to every chitin test; the outer is undoubtedly composed of the same material as the cuticle which everywhere forms the outer layer of the integument, and is secreted by the tegumental glands (for details see Yonge3).
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References
Herrick, Bull. U. S. Fish. Comm., 15, 1; 1896.
Herrick, ibid., 29, 149; 1911.
Yonge, Proc. Roy. Soc., B, 111, 298; 1932.
Needham, ” Chemical Embryology”, Cambridge, 1931.
Wigglesworth, Quart. J. Micr. Sci., 76, 269; 1933.
Lang and Yonge, J. Mar. Biol. Assoc. (in the press).
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YONGE, C. Origin and Nature of the Egg Case in the Crustacea. Nature 136, 67–68 (1935). https://doi.org/10.1038/136067b0
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DOI: https://doi.org/10.1038/136067b0
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