. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative. Fig. ,303.âCopulatoky Organs or Xascerta aj/ife. (After F. Leydig.) In A they are shown everted, and in B their position in the retracted condition is indicated by dotted lines extending backwards from the vent {Oe). B, Penes ; t, spinal furrow ; SD, the .so-called " femoral glands " (see p. 20). (Figs. 304, 305, a). It consists of fibrous and cavernous (erectile)^ tissue, and is protrusible, being regulated by muscles. In the female it is represented by a smaller clitoris. The penis bifurcates Fig. 304.âTran
. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative. Fig. ,303.âCopulatoky Organs or Xascerta aj/ife. (After F. Leydig.) In A they are shown everted, and in B their position in the retracted condition is indicated by dotted lines extending backwards from the vent {Oe). B, Penes ; t, spinal furrow ; SD, the .so-called " femoral glands " (see p. 20). (Figs. 304, 305, a). It consists of fibrous and cavernous (erectile)^ tissue, and is protrusible, being regulated by muscles. In the female it is represented by a smaller clitoris. The penis bifurcates Fig. 304.âTransvbkse Section of the Cloaca of a Chelonian. (Slightly diagrammatic.) After Boas. /, fibrous body )â , seminal furrow, bounded by cavernous tissue ; cloaca. wall of proximally, and its distal tongue-shaped portion ends freely; a longitudinal groove extends along the upper surface, at the proxi- mal end of which the vasa deferentia open. In Crocodiles the free portion is relatively longer and the groove deeper than in Chelonians. In many Birds a copulatory organ is present, formed on a similar plan to that of Chelonians and Crocodiles. It is well developed amongst the Ratitas and Lamellirostres, and in many other Birds can be recognised in a rudimentary condition. In Struthio it resembles that of the Crocodile, and is supported by a. 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, William Newton, 1857-1923. London, Macmillan
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectanatomycomparative
