1788 



THE VOYAGE OF H.M.S. CHALLENGER. 



Octopelta 



furcella, 856. 

 scutella, 856. 

 Octophormis, 1245. 

 Octopyle, 650. 



araphistyle, 651. 

 decastyle, 654. 

 euryzona, 652. 

 hexastyle, 653. 

 obtecta, 653. 

 octostyle, 653. 

 ovulina, 650. 

 quadrata, 650. 

 sexangulata, 653. 

 staurostyle, 651. 

 stenozona, 652. 

 subglobosa, 651. 

 tetraptera, 652. 

 tetrastyle, 652. 

 transversaria, 651. 

 Octotympanum, 999. 



arborescens, 1000. 

 cervicorne, 1000. 

 octonarium, 1000. 

 octospinum, 1000. 

 Odontospha>ra, 102. 

 cyrtodon, 102. 

 monodon, 102. 

 OMMACAMPIDA, 392. 

 Ommatartus, 396. 



amphicanna, 396. 

 amphisiphon, 396. 

 amphiobolus, 396. 

 Ommathymenium, 520. 

 OMMATIDA, 51. 

 Onimatocampe, 393. 



ampbilonche, 395. 

 annulata, 393. 

 chsetopodum, 395. 

 erucaeformis, 394. 

 increscens, 393. 

 nereis, 394. 

 polyarthra, 393. 

 profundissima, 380. 

 setosa, 381. 

 Ommatocyrtis, 366. 

 OMMATODISCIDA, 500. 

 Ommatodiscus, 500. 

 circularis, 501. 

 decipiens, 500. 

 fragilis, 502. 

 baeckelii, 501. 

 Isevigatus, 502. 

 stb'hrii, 501. 

 Ommalogramm.fi, 519. 



nawcularis, 519. 

 Ommatospyris, 363. 

 apicala, 371. 

 cosdnoides, 363. 

 entomocora, 367. 



Ommatospyris 



ethmaria, 363. 

 Icevis, 361. 

 penicillata, 370. 

 profunda, 365. 

 virginea, 363. 

 Orodendrum, 1598. 

 Orodietyum, 1601. 

 Orona, 1594. 



crassissima, 1594. 

 maxima, 1594. 

 robusta, 1594. 

 ORONIDA, 1593. 

 Oronium, 1694. 

 Orophasparium, 818. 

 Orophaspidium, 818. 

 Orophaspis, 817. 



astrolonche, 818. 

 diporaspis, 819. 

 furcata, 818. 

 gladiata, 818. 

 ramosa, 818. 

 tessaraspis, 819. 

 Oroplegma, 1600. 



diplosphaera, 1600. 

 giganteum, 1601. 

 spinulosum, 1600. 

 spongiosura, 1601. 

 velatum, 1600. 

 Oroplegmium, 1600. 

 Oroscena, 1597. 



bserii, 1598. 

 cuvieri, 1598. 

 danvinii, 1599. 

 duncanii, 1599. 

 gegenbauri, 1597. 

 huxleyi, 1599. 

 miilleri, 1598. 

 wolffii, 1598. 

 OROSOENIDA, 1593. 

 Oroscenium, 1597. 

 Orosphsera, 1594. 



arborescens, 1597. 

 clavigera, 1596. 

 confluens, 1596. 

 foveolata, 1595. 

 furcata, 1596. 

 fusigera, 1595. 

 hastigera, 1595. 

 horrida, 1596. 

 ramigera, 1596. 

 spinigera, 1595. 

 scrpentina, 1595. 

 OROSPH.ERIDA, 1590. 

 Orothamnus, 1596. 



arborescens, 1597. 

 Otosphsra, 116. 



auriculata, 116. 

 polymorpha, 116. 



PANACANTHA, 715. 

 Panarium, 388. 



annularium, 389. 

 artophorum, 389. 

 facettarium, 388. 

 pipettarium, 389. 

 tubularium, 390. 

 Panartella, 377. 

 PANARTIDA, 375. 

 Panartissa, 379. 

 Panartoma, 381. 

 Panartura, 381. 

 Panartus, 376. 



amphiconus, 379. 

 diploconus, 379. 

 fusiformis, 379. 

 pluteus, 382. 

 profundissimus, 380. 

 quadriceps, 380. 

 quadrigeminus, 381. 

 quadrijugus, 380. 

 setosus, 381. 

 spinosus, 381. 

 tetracolus, 377. 

 tetrameres, 378. 

 tetraphalangus, 378. 

 tetraplus, 377. 

 tetrathalamus, 378. 

 Panicium, 385. 



amphacanthum, 385. 

 amphistylus, 385. 

 coronatum, 386. 

 scoparium, 385. 

 PANSOLENIA, 1521. 

 Pantopelta, 855. 



icosaspis, 855. 

 PARADICTYIDA, 1099. 

 Paradictyum, 1102. 



paradoxum, 1102. 

 Parastephanus, 1008. 



asymmetricus, 1008. 

 circularis, 1008. 

 dispar, 1009. 

 quadrispinus, 100S. 

 PARASTEPHIDA, 987. 

 PAKATYMPANIDA, 1004. 

 Paratympauum, 1005. 



decastylum, 1005. 

 hexastylum, 1005. 

 octostylum, 1005. 

 Patagospyris, 1087. 



anthoeyrtis, 1088. 

 confluens, 1088. 

 lanccolata, 1088. 

 stiligera, 1088. 

 PELTOPHRAOTA, 803. 

 Pentactura, 479. 



astropecten, 479. 

 pentactis, 479. 

 Peiitalacorys, 1371. 



