Remarks on the cloaca and on the copulatory organs of the Amniota / by Hans Gadow.

  • Gadow, Hans Friedrich, 1855-1928.
Date:
1887
Catalogue details

Licence: Public Domain Mark

Credit: Remarks on the cloaca and on the copulatory organs of the Amniota / by Hans Gadow. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    By Hans Gadow, Ph.D., M.A., Lecturer on the advanced Morphology of Vertebrata, and Strickland Curator in the University of Cambridge. Communicated by Professor M. Foster, Sec. R. S. . -A Received March 11,—Read March 25, 1886. §(18 OCT 89)1) [Plates 2-5.] \$\ Contents. PAGE. Chapter I.—Muscles of the Cloaca 9 Muscles of the Cloaca of the Crocodilia 10 Cloacal and copulatory muscles of Chelonia 10 „ „ Birds 11 „ „ Sauria 12 „ „ Hatteria 12 „ „ Mammalia 12 Chapter II.—The nerve-supply of the Cloacal region in Crocodiles 14 Chapter III.—The modifications of the Cloaca 15 Crocodilia 16 Sauria 18 Ophidia 18 Hatteria 19 Aves 20 Chelonia 21 Anal pouches 22 Peritoneal canals 23 Monotremata 26 Marsupialia 26 Placentalia 27 Summary of Chapter III 28 Chapter IY.—On the presence of Mullerian ducts in the males, and of Wolffian ducts in the females of young Crocodilia 30 Chapter Y.—General conclusions 30-32 A rich material of Crocodiles and Alligators has enabled me to clear up several points in the structure of their sexual apparatus, which have hitherto escaped notice, probably owing to the scarcity of suitable specimens. This latter difficulty has been removed in my case by the liberality of the University of Cambridge and of the Koyal Society, which has enabled me, in conjunction with Dr. Gaskell, to MDCCCLXXXVII. — B. 27.4.87