. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Vol. LXXVIII, No. 2 THE April, 1940 BIOLOGICAL BULLETIN PUBLISHED BY THE MARINE BIOLOGICAL LABORATORY SPERM AGGLUTINATION IN THE KEYHOLE LIMPET, MEGATHURACRENULATA ALBERT TYLER (From the William G. Kerckhoff Laboratories of the Biological Sciences, California Institute of Technology, Pasadena) F. R. Lillie (1913) demonstrated that the sea water in which ripe sea-urchin eggs have been standing acquires the property of causing an agglutination of the spermatozoa of the same species. This iso- agglutination of sperm by egg wate
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Vol. LXXVIII, No. 2 THE April, 1940 BIOLOGICAL BULLETIN PUBLISHED BY THE MARINE BIOLOGICAL LABORATORY SPERM AGGLUTINATION IN THE KEYHOLE LIMPET, MEGATHURACRENULATA ALBERT TYLER (From the William G. Kerckhoff Laboratories of the Biological Sciences, California Institute of Technology, Pasadena) F. R. Lillie (1913) demonstrated that the sea water in which ripe sea-urchin eggs have been standing acquires the property of causing an agglutination of the spermatozoa of the same species. This iso- agglutination of sperm by egg water has since been reported in a num- ber of animals, principally in the echinoderms, as the following list shows— Echinoderms: Arbacia punctulata (Lillie, 1913, 1914, 1919) Strongylocentrotus purpuratus (Loeb, 1914; Lillie, 1921) Strongylocentrotus franciscanus (Loeb, 1914; Lillie, 1921) Asterias forbesii (Glaser, 1914; questioned by Just. 1930) Echinarachnius panna (Just, 1915, 1919) Paracentrotus lividus (Just, 1929) Echinus microtubercidatus (Just, 1929) Echinus esculentus (Carter, 1932) Echinometra subangularis (Southwick, 1939) Annelids: Nereis limb at a (Lillie, 1913) Platynereis mcgalops (Just, 1915) Mollusks: Katharina tunicata (Sampson, 1922) An interesting feature of the agglutination reaction, as described by Lillie, is that the agglutinates break up spontaneously. The clumps form very quickly after the addition of egg water, then after a few sec- onds or a few minutes, depending upon the concentration of egg water employed, reversal occurs. After complete agglutination and reversal the sperm cannot be re-agglutinated although they are alive and motile. The impression has been given, in the work on agglutination (see Lillie, 159. 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 L
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
