PLATE LXIX. 



Fig. 



1. Tenth foot of Genetyllis hibernica, Mel. X 90. 



2. Fortieth foot of the same. X 90. 



3. Twelfth foot of Eteone picta, Be Quatref. X 210. 



4. Thirtieth foot of the foregoing. x 210. 



5. Tenth foot of Eteone spetsbergensis, Mgrn. X 50. 



6. One hundredth foot of the same. X 50. 



7. Seventieth foot of Eteone pusilla, (Erst. X 50. 



8. Tenth foot of Eteone arctica, var. Bobertiana, from the West Rocks, St. Andrews. X 50. 



9. Seventieth foot of the foregoing. X 50. 



10. Foot of Mysta barbata, Mgrn. X about 90. 



11. Tenth foot of Mystides Lizzise, n.s. West Sands, St. Andrews. X 90. 



12. Fiftieth foot of the same. X 90. 



13. Typical foot of Ophiodromus flexuosus, D. Ch. : a, dorsal lobe ; b, ceratophore of 



dorsal cirrus ; c, long papilla of superior division ; d, long papilla of the ventral 

 division ; e, ventral cirrus. X about 100. 



14. Anterior foot of G as talia punctata, 0. F. M. X 90. 



15. Anterior foot of Gastalia arctica, Mgrn. X about 100. 



16. Anterior foot of Gastalia fusca, Johnst. X about 100. 



17. Foot of Leocrates atlantica, Roule. X about 35. 



18. Foot of Mag alia per armata, De St. Joseph. X 50. 



