PLATE XXXIX 



Fig. I . Genital aperture of young female Fin whale showing the vaginal 

 band. (After flensing.) 



Fig. 2. Similar photograph taken before flensing. 



In both these photographs the clitoris is the lobed structure with the 

 vaginal band lying in line with and below it. 



Fig. 3. Genital aperture, uterus, and one ovary of z-']6m. foetus of 

 Fin whale No. 173. Vaginal band present. 



Fig. 4. Ovaries of 6-3 m. foetus of Blue whale. No. 154. 



