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Hammer, R.M. (1978). Scanning electron microscope study of the spermatophore of Acartia tonsa (Copepoda: Calanoida). Transactions of the American Microscopical Society 97(3):386-389, figs. 1-4.
Hammer, R.M. (1978). Scanning electron microscope study of the spermatophore of Acartia tonsa (Copepoda: Calanoida). Transactions of the American Microscopical Society 97(3):386-389, figs. 1-4.