FEMALE GENITAL SYSTEM: MAMMARY GLANDS 



395 



in which the glands open. The glands themselves are tubulo-racemose and oval in outline, 

 with their widest point about one-third of their length from their posterior ends in 



Fig. 10. External genitalia of a female Fin whale foetus 2-i m. in length. The skin has been dissected away 

 from one side to show the mammary gland and compressor mammae muscle, (x f.) 



a. Panniculus carnosus. d. Nipple in mammary groove. 



b. Compressor mammae muscle. e. Accessory groove. 



c. Clitoris. f. Vulva. 



the adult, and about half their length in the foetus. The longest axes of the ovals make an 

 acute angle with the middle line of the abdomen. The central duct of the gland receives 

 secondary ducts laterally, and, near the nipples, swells out to form athick-walled reservoir. 



