. The crayfish; an introduction to the study of zoology. Crayfish; Zoology. Fig. 33.—Astacus fluviatdis.—A, a lobule of the testis, showing a^ acini, springing- from h, the ultimate termination of a duct (x 50). B, spermatic cells ; a, with an ordinary globular nucleus n ; h, with a spindle-shaped nucleus ; c, with two similar nuclei; and d, with a nucleus undergoing division (x 600). bodies attached by short stalks, and invested by the struc- tureless membrane as a memhrana propria (fig. 32, m). These are the ovisacs. In the mass of cells which be- comes the ovisac, one rapidly increases in s
. The crayfish; an introduction to the study of zoology. Crayfish; Zoology. Fig. 33.—Astacus fluviatdis.—A, a lobule of the testis, showing a^ acini, springing- from h, the ultimate termination of a duct (x 50). B, spermatic cells ; a, with an ordinary globular nucleus n ; h, with a spindle-shaped nucleus ; c, with two similar nuclei; and d, with a nucleus undergoing division (x 600). bodies attached by short stalks, and invested by the struc- tureless membrane as a memhrana propria (fig. 32, m). These are the ovisacs. In the mass of cells which be- comes the ovisac, one rapidly increases in size and occupies the centre of the ovisac, while the others. 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 Huxley, Thomas Henry, 1825-1895. New York, D. Appleton and company
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Keywords: ., bookauthorhu, bookcentury1800, bookdecade1880, booksubjectzoology
