PLATE CXXXIV. 



Notostomus patentissimus (p. 826). 

 Fig. 1. Ventral surface. 

 ,, la. Ophthalrnopod. 



„ lb. First antenna ; 1 b", portion of rlagellum ; 1 V" , section of flagellum. 

 ,, lc. Second antenna. 

 „ 2. Branchiae in position. 



Notostomus murrayi (p. 829). 

 „ 3. Lateral view ; enlarged twice. 



