PLATE XXV. 



ANTEDON ANTARCTICA, n. sp. 



Figs. 1-3. The pinnules on the second, fourth, and sixth brachials, 



Fig. 4. Normal young cirrus, . 



Fig. 5. Another, still younger, . 



Fig. 6. A mature cirrus, 



Fig. 7. " Small mature " cirrus, 



Figs. 8, 9. Two radial axillaries, 



Figs. 10-12. Side views of three individuals, 



