﻿LIST OP THE WOOD-CUTS. 



1. Opliiura teres. Lower side, p, arm-spines 37 



2. Ophioglypha Sai-sii. Upper side, showing the comb of papillfe at the base of the 



arm. /, upper arm-plate 42 



3. Ophioglypha Sarsii. Lower side, h, lower arm-plate ; i, lower part of side arm- 



plate 43 



4. Ophiozona impressa. Lower side, n, genital scales 65 



5. Ophiocoma cchinata. Chewing apparatus, seen from within, rf, tooth-papillie ; 



d", teeth 81 



6. Ophiacantha spinulosa. Upper side 9^ 



7. Ophiacantha spinulosa. Lower side ......... 94 



8. Ophiostigma isaeanthura. Upper side, m, radial scale 104 



9. Ophiostigma isacanthum. Lower side, a, mouth-shield ; b, side mouth-shield . 104 



10. Ophiactis Krebsii. Upper side, i, radial shield Ill 



11. Ophiactis Krebsii. Lower side, h' and h'", inner lateral sides of under arm-plates ; 



/i", outer side ; 7i"", lateral side . . . . . . . . .112 



1 2. Amphiura oceidentalis. Upper side . . . . . . . . . 130 



13. Amphiura oceidentalis. Lower side 130 



14. Ophionereis porrecta. Upper side p, arm-spines 147 



15. Ophionereis porrecta. Lower side, d, mouth-papillte ; c, inner point of mouth 



angle ; q, tentacle-scale 148 



16. Ophiopsila Riisei. Upper side 150 



17. Ophiopsila Riisei. Lower side. <?, tentacle-scale ; o, genital opening . . .150 



18. Ophiomyxa flaccida. Upper side 178 



19. Ophiomyxa flaccida. Chewing apparatus, from below 178 



