. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates. cla B FIG. 349.—The URINOGENITAL ORGANS OF Scyllium (From Parker's Practical Zoolcxjy.) A, male, and B, female. Only the anterior end of the gonad is represented in each figure, and except that in B both kidneys are shown, the organs of the right side only are drawn. In A the seminal vesicle and sperm-sac are dis- sected away from the kidneys and displaced outwards, and the urinary ducts inwards. , depression into which the abdominal pore opens ; cl, cloaca; els, clasper ; , vasa efferentia extendi
. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates. cla B FIG. 349.—The URINOGENITAL ORGANS OF Scyllium (From Parker's Practical Zoolcxjy.) A, male, and B, female. Only the anterior end of the gonad is represented in each figure, and except that in B both kidneys are shown, the organs of the right side only are drawn. In A the seminal vesicle and sperm-sac are dis- sected away from the kidneys and displaced outwards, and the urinary ducts inwards. , depression into which the abdominal pore opens ; cl, cloaca; els, clasper ; , vasa efferentia extending between the testis and the anterior section of the mesonephros ; , k', middle section of mesonephros ; £, posterior section of mesonephros ; Ir, anterior portion of liver ; , vestigial Miillerian duct in the male; oes, gullet; or, ovary; ovd, oviduct (Miillerian duct); ovd' common ctelomic and oi'd", cloacal aperture of oviducts ; r, rectum ; , shell-gland ; »pd, Wolffian duct (vas deferens) ; , sperm-sac ; , vesicula seminalis, and ', its aperture into the urinogenital sinus ; ts, testis ; , urinogenital sinus ; ur, ducts of posterior section of kidney, and nr' their apertures into the cloaca ; , urinary sinus of 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 Wiedersheim, Robert, 1848-1923; Parker, W. N. (William Newton), d. 1923. London, Macmillan and co. , limited
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