Neptunus tumidulus 51. 
ventralis 44. 
neptunus, Alpheus no. 
Synalpheus 109, 110. 
Nereidse 193. 
Nereis arroyensis 193. 
bairdii 193. 
gracilis 193. 
mirabilis 193. 
nia, Lupa 44. 
Nicella 277. 
Nicidion brevis 200. 
Nidalia 270. 
nigreseens, Tedania 395. 
nigromaculata, Cirratulus 204. 
Nika bermudensis 104. 
couchii 104. 
edulis 104. 
Nikidse 104. 
nilotiea, Euryplax 8. 
Limnatis 213. 
nitida, Clythrocerus 90. 
nitidus, Dissodactylus 22. 
Leiolambrus 80. 
nivea compta, Opbiozona 240, 243. 
nodifrons, Menippe 37. 
nodosa, Aetsea 33. 
Actaea rufopunctata 33. 
Polynoe 187. 
nodosus, Oreophorus 89. 
Petrolisthes 134. 
Speloeophorus 88, 89. 
nodulifera, Solanderia 279, 280. 
nodulosa, Dynamene 173. 
notata, Lysidice 200. 
Nothocaris 117. 
Notopygos crinita 194. 
nuciformis, Luffaria 407. 
nucula, Chondrilla 38G. 
nudimanus, Pilumnus 38, 39. 
nudus, Mithraculus 69. 
Mitbrax 69. 
nuttingi, Xanthias 35. 
nummiforme, Discosoma 304. 
Nummulinidae 416. 
nympheae, Maminillifera 332. 
Zoanthus 335. 
Nynantheae 327, 328. 
obeso-manus, Alpheus 100. 
oblita, Cyphastraea 301. 
obtruncata, Cirolana 166, 107. 
occidentals, Eupanopeus 28, 29. 
Panopeus 29. 
Oceanapia oleracea 395. 
ocellata, Porcellana 137. 
Octactiniaria 325. 
oeulata, Goniada 201. 
I’hyllodoce 191. 
Pseudosquilla 156. 
oculea, Panthalis 188. 
Oculina diffusa 291, 294. 
Oculinidae 294. 
Ocypoda albicans 0. 
lateralis 14. 
Oeypode albicans 0. 
arenaria 6. 
arenarius 6. 
rhombea 6. 
Ocypodid* 5, 6. 
Odontocyatlius 312. 
ceesena, Clavulina 416. 
(Edipleura 14. 
UJdipus 122. 
cerstedii, Gonodactylus 151, 152, 153,155. 
Opliiothrix 240', 244. 
officinalis, Euspongia 402. 
oleracea, Oceanapia 395. 
lthizoehalina 395. 
olfersi, Palaemon 124. 
olfersii, Bithynis 123, 124. 
Ligia 175. 
Palsemon 124. 
oligactes, Astroschema 241, 251. 
Oligosilicina 386. 
olivacea, Ophionereis 240, 248. 
Oniscidce 164, 176. 
Oniscoidca 164, 175. 
opalina, Arabella 199. 
Lumbriconereis 199. 
Oplieliidse, 207. 
Ophiacantbidse 245. 
INDEX. 
Ophiacantha bidentata 240, 249. 
dispar 246. 
longibraehia 240, 246. 
loricata 240, 246. 
ophiactoides 240, 249. 
Ophiactis 251. 
krebsii 240, 246. 
ophiactoides, Ophiacantha 240, 249. 
Ophialcoca glabra 241, 249. 
Ophidiastcr guildingii 237. 
Ophioblenna antillensis 251. 
Ophiocoma echinata 240, 245, 263. 
pumila 240, 245. 
riisei 210, 245. 
Opliioglypha ljungmani 240, 243. 
robusta 240, 243. 
Ophiolepis 251. 
elegans 240, 242. 
paucispina 251. 
Ophiomitra 250. 
Ophiomusium eburneum elegans 240, 
243. 
seulptum 240, 244. 
validum 240, 244. 
Ophiomyxa flaccida 241, 251. 
Ophionereis dubia 240, 248. 
olivacea 240, 248. 
reticulata 240, 249. 
Ophioplinthacaspinisslma 240, 250. 
Ophiopristis hirsuta 240, 250. 
Ophiopsila fulva 241, 245. 
riisei 241, 245, 246. 
Opbioscolex serratus 241, 250. 
Ophiostigma isacanthum 240, 249. 
Opliiothrix angulata 240, 244, 263. 
cerstedii 240, 244. 
suensonii 240, 244. 
Ophiothyreus goesii 240, 243. 
Opbiozona impressa 240, 243. 
nivea compta 240, 243. 
tessellata 240, 243. 
Ophiuraappressa 240, 242. 
brevicauda 240, 242. 
brevispina 240, 242. 
cinerea 240, 242. 
guttata 251. 
rubicunda 240, 242. 
Ophiuroidea 239, 260, 261, 262, 263. 
Orbicella 300. 
acropora 291, 301, 302. 
annularis 301. 
cavernosa 300. 
hyades 302. 
radiata 300. 
Orbicellidse 300. 
Orbiculina adunca 416. 
Orbitolites duplex 416. 
marginalis 416. 
Orbulina universa 416. 
ordwayi, Achelous 44, 46. 
Neptunus 46. 
Portunus 44, 46. 
Oreophorus nodosus 89. 
Orgaiii’dse 269, 270. 
Organidus 270. 
Orinia 364. 
ornata, Eunice 195. 
Pseudosquilla 155. 
ornatus, Callinectes 47, 48. 
Teleophrys 65. 
Oropliorhynchus platirostris 148. 
Orthodisene 380. 
Ortliotrisene 380. 
Ortmannia 118, 120. 
lienshawi 120. 
potimirim 120. 
Oseillaria spongelise 410. 
osculifera, Actinia 368, 370. 
Epicystis 368. 
ostrearius, Pinnotheres 20. 
ostreum, Pinnotheres 20. 
Othonia 76. 
aculeata 77. 
anisodon 77, 
earolinensis 78. 
lherminieri 77, 78. 
rotunda 78. 
Oulactis 342, 350. 
fasciculata 346. 
flosculifera 346. 
foliosa 346. 
425 
Oulactis granulifera 348. 
Oxea 380. 
Qxyaster 380. 
Oxyhexaster 380. 
oxyophthalma, Albunea 139. 
Oxyrhynclia 5, 52. 
Oxystomata 5, 84. 
Oyster crab 20. 
Ozius 24, 37. 
reticulatus 37. 
Pachychalina amarantlius 391. 
areolata 392. 
aurantiaca 393. 
mollis 390. 
rubens 392. 
Pachycheles ackleianus 136. 
rugimanus 136. 
Pachygrapsus 15, 17. 
gracilis 17. 
transversus 17. 
pachyphylla, Manicina 296. 
packardii, Alpheus 105, 107. 
Pagurias insignis 141. 
Paguridae 140. 
Paguristes 132, 143. 
depressus 132, 143, 144. 
digueti 145. 
grayi 146. 
lymani 145. 
moorei 144. 
puncticeps 143, 144. 
rectifrons 143, 145. 
sayi 144. 
sericeus 145. 
spinipes 145. 
tenuirostris 143. 
triangulatus 146. 
visor 145. 
Pag urns 139. 
bernhardus 138. 
cubensis 142. 
diogenes 139. 
granuiatus 140. 
marshi 139, 
sulcatus 141. 
tricolor 142. 
tubereulosus 142. 
Palsemon 123, 125. 
acant burns 123. 
allinis 125. 
africanus 123. 
faustinus 124. 
hispidus 99. 
olfersi 124. 
paulensis 125. 
spinimanus 124. 
squilla 125. 
Paisemonidse 91, 123. 
Palsemonetes Carolines 126. 
Palaeopneustes hystrix 252, 254. 
Palemon affinis 125. 
forceps 123. 
jamaicensis 123. 
macrobrachion 123. 
spinimanus 124. 
Palicidse 12. 
Palicus alternatus 12. 
sica 12, 13. 
Palinurellus 98. 
Palinuridse 91, 98. ' 
Palinurini 98. 
Palinurus argus 98. 
pallescens, Spongelia 410. 
pallidum, Gnathophyllum 126. 
Palmate 380. 
Palythoa 323, 331, 338,340, 352. 
caribsea 329,331,341,372, 373. 
caribfcorum 341. 
mammillosa 331,311. 
panamensis, Squilla 160. 
Pandalidse 91. 117. 
Pandalinse 117. 
Pandalopsis 117. 
Pandalus longicauda 117. 
pannosus, Pilumnus 38,39. 
Panopeus 28. 
abbreviatus 30. 
americanus 29. 
areolatus 29. 
bermudensis 29. 
harttii 29. 
