286 DE. J. MUEIE ON THE OEGANIZATION OF THE CAAING WHALE. 



open outwardly by a small slit containing a retracted nipple, in this case apparent, but 

 only imperfectly pronounced. The glands themselves have a tough fibrous external 

 coat, and are surrounded by a strong constrictor muscle. 



The male organs of generation of Globiceps^ have been described by Jackson; they 

 resemble those of the Dolphin. He says, " connected with the vasa deferentia, and 

 forming undoubtedly a part of the genital system, was a canal, 2J inches long, opening 

 on the verumontanum, just in front of the vasa, and so closely connected with them as 

 not distinctly to appear, except for about one third of an inch just before the vasa came 

 together. At this last part, where it termmated in a cul-de-sac, it appeared as large as 

 the vasa, but was thinner, and the cavity larger, the inner surface being white and 

 rugous. It afterwards became smaller ; but before termination the cavity enlarged to 

 five or six lines. No glands were seen on the inner surface"^. An organ resembling 

 the above was found by the same author in the Sperm-Whale, the Dolphin, and the 

 Porpoise'. I take it to be a uterus masculinus; and as 1 have myself seen it in two 

 genera, one may infer its presence in most, if not in all the genera of the family (see 

 woodcut antea, fig. 3). 



No sectional representation of the Cetacean penis, to my knowledge, is published, 

 although the structures themselves have long ago received elucidation by Hunter'' &c. 

 I incorporate in the Plates of this memoir, therefore, a drawing (fig. 56) of that of a 

 large Fin-Whale °, typical in part of what obtains in the genera of smaller size. 



2. Pelvic Bones, Ligament, and Muscles. — The pelvis in Globiocejphalus is represented 

 by a pair of short styliform bones (ossa innominata), which, at a moderate distance 

 from each other, float free from the spine among the muscular and other tissues near 

 the genital outlet. In this female each of these smooth tapering bones measured 

 4 inches in length, had a strong resemblance, in shape, to a first rib, concavity inwards, 

 or looking towards its fellow. Anteriorly there was an inturned capitulum, as in Orca, 

 just behind the neck of which the bone enlarged somewhat, and then tapered gently 

 towards the narrow and pointed hind extremity. At the thickest belly-part of the 

 bone the diameter was -^^ inch, proportionally less in front and behind. There was a 



' In Dr. Williams's account of the generative parts of the Lewchew Whale he says, " there was an anomalous 

 connexion between the urethra and rectum, near their termination, of a firm, round, imperforate band of a 

 tendinous nature, half an inch in diameter, the use of which was not at all apparent," I. c. p. 412. Does he 

 aUude to the retractores ? or the male parts representative of the mammary glands? 



2 L. c. p. 166. 



' See also a notice of the presence of a uterus masculinus in PJtoccena by Huxley, Hunt. Lect. and Lancet, 

 1866, p. 381. 



* Phil. Trans. 1787, p. 441, and his original preparation, Physiol. Cat. Coll. Surg. no. 2527. 



' Physaliis antiquorum=B. muscidus, specimen no. 2524 E, Coll. Surg. Mus., and same referred to in P. Z. S. 

 1865, p. 215. 



I hazily remember having seen a lithograph of a view similar to that here given in Dupuytren's Museum in 

 Paris. 



