PLATE I 

 GENITAL SYSTEM OF THE MYXINOIDEA 



GENERAL EXPLANATION OF PLATE FIGURES 



All of these figures were drawn by Doctor Dean from dissections, probably of specimens of Bdellostomd 

 burgeri, although they may represent Bdellostoma stouti (see pp. 83 and 84). Doctor Dean gave no informa- 

 tion to indicate the proportions of the drawings to the actual specimens; they are probably life-size. 



In all the males the testis is located in the posterior part of the mesorchium. In all the females the 

 smallest eggs are nearest the free (outer) margin of the ovary, while the successively larger eggs occupy posi- 

 tions successively nearer the attached (inner) edge of the mesovarium, the largest eggs being the most internal, 

 i.e., nearest the attached margin. 



