Bulletin of the United States Fish Commission, 1885, Vol. 5 (Classic Reprint)
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| Stand: | 2015-08-04 03:50:33 |
Produktbeschreibung
Excerpt from Bulletin of the United States Fish Commission, 1885, Vol. 5 Through the courtesy of Dr. T. H. Bean, curator of the ichthyological department of the United States National Museum, I have been enabled to study the male generative glands or Syrskian organs of a species of Anguilla, taken at Fire Island Beach, Great South Bay, long Island, by himself and party during the latter part of the summer of 1884. Four specimens handed to me for investigation proved to be males. Two of these bear the Museum number 35979, taken October 7, and two others, the number 35979, taken September 25. In all four I found the lobulated organs, first described by Syrski, in a condition of development, which leaves no doubt whatever that they are truly the male generative glands of the animal. In the females hitherto examined by the writer the generative folds attached along cither side of the mesentery on the dorsal wall of the abdomen are found as continuous folds, lobulated on their external faces, and are mostly composed of very young ova, fat cells, and very little or no connective tissue or ovarian stroma. In the generative organs of the male specimens alluded to above the glands extend along either side of the mesentery, in the same position as in the females, but the structure consists of very distinct reticule-shaped lobules, which connect at their bases with a common vas deferens, which extends along their bases and opens posteriorly into a triangular spare, which in turn opens into the common genito urinary outlet. Syrski states that these lobtilatcd organs are tilled with granules, which are confined to compartments separated by fibrous membrane. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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