PLATE III. 



HoLOPUS RANGi, d'Orbigny. 



Fig. 1. View of the cup from above after removal of two of the com- 

 posite axillaries, ...... 



Fig. 2. Interior of the cup of the specimen represented in PL II., 

 showing the oral plates. Two axillaries are supposed to 

 be removed, ...... 



Fig. 3. Slightly oblicj^ue view of the dorsal surfaces of an axillary and 

 the attached first brachial, .... 



Fig. 4. Dorsal aspect of an axillary, .... 



Fig 5. Oblique view of its proximal face, 



Fig. 6. Oblique view of the ventral sides of two united brachials, 



Fig. 7. Proximal face of the second brachial, . 



Figs. 8-13. Terminal faces of some of the large lower brachials. 



Figs. 14, 15. Terminal faces of some of the small outer brachials. 



Fig. 16. Portions of the pinnules, , . , , 



Diam. 

 3 



Page 

 203 



208 



