342 THE VOYAGE OF H.M.S. CHALLENGER. 



Fig. 4. Amiohiura helUs, Lym., below, -];. 



„ 5. „ „ above, f 



„ 6. „ „ arm joint in profile, {. 



J, 7. „ maxima, Lym., below, f. 



8. „ „ above, f-. 



,, 9. ,, „ arm joint in profile, f . 



,, 10. „ ,, an under arm plate, ^^. 



,, 11. ,, dalea, below, \. 



12. ,, above, \. 



13. ,, arm joints in profile (spines are too slender), '{. 



14. ,, capensis, h]\i., hAow, ^. (Referred by error to Lyman in the plate.) 



15. „ „ above, f. 



16. ,, ,, arm joints in profile, f- 



17. OpMostigma africanum, Ljn., below, ^o. 



18. „ „ above, \o. 



19. ,, J, arm joint in profile, '-^\ 



PLATE XIX. 



Fig. 1. Amphilepis patens, Lym., below, f. 



2. „ „ above, f 



,, 3. ,, ,, arm joint in profile, f. 



,, 4 Opliiocnida scahra, L}Tn., below, 5J2. (Some of the papillose tentacles are 



protruded.) 



„ 5. „ „ above, \^. 



,, 6. ,, „ arm joint in profile, ^j^. 



„ 7. „ pilosa, Lym., below, ij*. 



8. „ „ above, ^^. 



„ 9. „ ,, arm joint in profile, ij*- 



,, 10. Ojihiomyces spathifer, Lym., below, \5_ 



,, 11. ,, „ above, ^f'. (The disk is folded as often seen in the 



genus. ) 



„ 12. ,, ,, arm joint in profile, ^^. 



„ 13. ,, grandis, Lym., below, f. 



„ 14. „ „ above, f. 



,, 15. ,, ,, arm joint in profile, f. 



,, 16. Ophiactis canotia, Lym., below, ^f. 



„ 17. „ „ above, lo. 



„ 18. ,, „ arm joint in profile, ij**. 



