PLATE 11 



EXPLANATION OF FIGURES 



75 Transverse section through the testis band at the posterior end of the 

 mesovarium of a young Myxine (no. 18). Camera lucida, X 50. 



76 Transverse section through the testis band at the posterior end of the 

 mesovarium of an older, but immature Myxine (no. 7). Camera lucida, X 30. 



77 Transverse section through the testis band of Myxine no. 15, a normal 

 male. Camera lucida, X 50. 



78 Enlarged sketch of a transverse section through a follicle in the testis of 

 Myxine showing the spermatogonia in the metaphase stage. 



79 Transverse section through a follicle in the testis band of Bdellostoma no. 

 7, showing spermatozoa. 



80 Transverse section through the anterior region of the testis band of Myx- 

 ine no. 12. Camera lucida, X 30. 



81 Sketch of a portion of transverse section through the posterior region of 

 the testis band in Myxine no. 12. Camera lucida, X 30. 



