Summary
A comparison among the sperm of eight species of teredos, four of which fertilize the eggs in the mantle cavity and four of which do not, revealed that externally fertilizing sperm have larger acrosomes and longer acrosomal rods than do internally fertilizing sperm.
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The author would like to express his gratitude to Doctor M. R. Dickson and Doctor C. K. Goddard for their helpful suggestions and comments, and to Mr. A. B. Martin and Mrs. J. Campbell for their technical assistance.
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Popham, J.D. Comparative morphometrics of the acrosomes of the sperms of “externally” and “internally” fertilizing sperms of the shipworms (teredinidae, bivalvia, mollusca). Cell Tissue Res. 150, 291–297 (1974). https://doi.org/10.1007/BF00220138
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DOI: https://doi.org/10.1007/BF00220138