Abstract
IT is unfortunate that even the most recent text-books of entomology are not up-to-date in their accounts of the above organs. It is only with regard to the ectodermal parts of the ducts that opinions have differed; otherwise it is admitted by all that ovaries and oviducts correspond to the testes and vasa deferentia respectively. In every book, old or new, one finds the median ejaculatory duct homologised with the median vagina. This homology is open to serious objection: the ejaculatory duct opens in all insects, excepting the Ephemeroptera, behind the ninth sternite, and is unpaired from the very beginning, while the vagina or the uterus opens in most insects between the eighth and ninth sterna, and is paired in origin in many orders.
Similar content being viewed by others
Article PDF
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
PRUTHI, H. Homologies of the Genital Ducts of Insects. Nature 115, 763 (1925). https://doi.org/10.1038/115763a0
Issue Date:
DOI: https://doi.org/10.1038/115763a0
This article is cited by
-
Zur entwicklungsgeschichte, vergleichenden anatomie und physiologie der weiblichen Geschlechtsausf�hrwege der Insekten
Zeitschrift f�r Morphologie und �kologie der Tiere (1931)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.