The Urinogenital Organs of the Male Frog (Rana temporaria)

Abstract

AN interesting error occurs in the description of the male urinogenital organs of the male frog (Rana temporaria) in such standard works as Ecker's “Anatomy of the Frog” (Haslam's translation), Wiedersheim and Parker's “Comparative Anatomy of Vertebrates,” and Parker and Parker's “Practical Zoology.” Briefly, it is stated that sperms pass through the vasa efferentia to enter a longitudinal duct in the kidney, and thence through transverse ducts in the kidney to the ureter, which acts as a vas deferens.