THE OVAKY AND THE EGOS. 



131 



during the breeding season than at other times ; the large 

 brownish-yellow eggs become conspicuous in the ovar}', 



Fig. 32. — JshicitsJiiviatUis. — A, a two-thirds grown egg contained in 

 its ovisac ( x 50) ; B, an egg removed from the ovisac ( x 10) ; 

 C, a portion of the wall of an ovisac with the adjacent portion of 

 the contained egg, highly magnified ; ej), epithelium of ovisac ; 

 ys, germinal spots ; t/v, germinal vesicle ; m., membrana propria ; 

 V, vitellus ; vm, vitelline membrane ; w, stalk of ovisac. 



and the testis assumes a milk-white colour, at this 

 period. 



The walls of tlie ovary are lined internally by a layer of 



K 2 



