. k I m n op Fig. 3. Longitudinal sagittal section of penis and genito-urinary ducts in Fin whale. j. Interpelvic ligament. a. Terminal cone. b. Retractor penis muscle. c. Spongy portion of urethra. d. Corpus cavernosum. e. Panniculus carnosus. /. Ischio-cavernosus muscle. g. Crus corporis cavernosi. h. Triangular ligament. i. Bulbo-cavernosus muscle. k. Rectum. /. Prostatic portion of urethra. m. Compressor prostatae muscle. n. Verumontanum with seminal pores. 0. Vas deferens. p. Urinary duct. q. Urinary pore with crista urethrae. r. Rectus abdominis muscle. A, B, C, D, E, F, G, H and /. Leve
. k I m n op Fig. 3. Longitudinal sagittal section of penis and genito-urinary ducts in Fin whale. j. Interpelvic ligament. a. Terminal cone. b. Retractor penis muscle. c. Spongy portion of urethra. d. Corpus cavernosum. e. Panniculus carnosus. /. Ischio-cavernosus muscle. g. Crus corporis cavernosi. h. Triangular ligament. i. Bulbo-cavernosus muscle. k. Rectum. /. Prostatic portion of urethra. m. Compressor prostatae muscle. n. Verumontanum with seminal pores. 0. Vas deferens. p. Urinary duct. q. Urinary pore with crista urethrae. r. Rectus abdominis muscle. A, B, C, D, E, F, G, H and /. Levels of transverse sections in Fig. 4. In describing the penis it has been decided to refer to the "anterior " and "posterior " aspects of the organ, and to abandon the terms "ventral" and "dorsal", employed by Daudt and other authors, in view of the central position of the penis in the middle line of the body. Within the body the penis enlarges, as has been already stated, to form a pear-shaped bulbus (Figs. 1, 2, 3). The greatest width of the bulbus is about one-third the extreme
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
