Title: The Biological bulletin
Identifier: biologicalbullet130mari (find matches)
Year: [1] (s)
Authors: Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983
Subjects: Biology; Zoology; Biology; Marine Biology
Publisher: Woods Hole, Mass. : Marine Biological Laboratory
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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BIOLOGY OF AN ANTARCTIC ECHINOID 393
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FIGURE 3. Histologic sections of testes from 5". iicitinaycri collected at McMurdo Sound on February 7 (A), April 5 (B), April 20 (C), May 5 (D), and December 6 (E and F), 1961. Samples for A-D were collected from Cape Evans, and those for E and F were collected from Turtle Rock. Between February and May spermatogenesis was active among the abundant vesicular nutritive phagocytic tissue, and spermatozoa accumulated in the lumen, although as shown in B and C, spermatogenesis was not uniform along the germinal epithelium. In De- cember the small testicular lobes contained little phagocytic tissue and spermatogenic activity was low, but the testes of some animals (e.g., E) contained many spermatozoa. The scale line in A indicates 100 /*; A-F are shown at the same magnification.

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