258 



DISCOVERY REPORTS 



Hydnirga. There are also signs of inflammation in the alveolar region of this skull. 

 It is a matter for speculation whether channels for infection may not have been 

 opened either by the breaking of the teeth or the reception of wounds. It is well known 

 that seals' wounds are almost invariably septic. 



B. 



Fig. 5. Pathological nodules on skull of B. 55. A, on the zygomatic process of 

 the left maxilla and B, on the right pterygoid. 



FEMALE GENITALIA 



The genitalia of no. 656 were preserved ; this animal showed only early and micro- 

 scopical signs of sexual activity, so that the following is a description of a young virgin 

 (PI. XII). 



The ovaries are enclosed in almost complete capsules and are of a flattened bean- 

 like form; the right organ is 2-8 by 1-4 cm. The cornua are rather short (13-2 cm.), and 



Aperture of Vagina 

 Urethral Papilla 



Fig. 6. Dorso-posterior view of the vaginal aperture of no. 656, showing the hymeneal band. 



there is no projecting cervix. The vagina is i6-2 cm. in length. Its opening projects 

 into the vestibule immediately before the urethral papilla and has a strap-like hymeneal 

 band in a more or less median position. When fully straightened this band is 14-2 mm. 

 long (Fig. 6). The vestibule, to the tip of the clitoris, is 9 cm. in length, so that the total 

 length of the passage, excluding the Fallopian tube, is 38-4 cm. The hardness of the 



