INDEX. 



211 



Oceanic- liasins. Agassi/.. L., on, i. 4. 



Kriimmel on, i. 1 26. 



permanence of, i. 125. 



pressure on rooks below, i. 132. 



soundings in, by " Challenger, " i. 260, 



temperature of, i. 246. 



Thomson, C. Wyville, on, i. t. 



topography of, i. L07. 

 Oceanic circulation, tradewind theory of, i. 

 247. 



Thomson's theorj of, i- 247. 

 Oceanic currents, theories of, i- 247- 



in past ages, i. 128. 



slow movements of, i. 302. 

 Oceanic deposits, organic ooze and red clay 



of, i. 264. 

 Oceanic districts, salinity of, i. 248. 

 Oceanic islands, i. 117. 

 Oceanic realms, specialization of, i- 160. 

 Oceanic temperature, disturbing factors of , i. 



248, 

 Ocyroe cristallina, ii. 129. 

 Ocyroe, Fewkes, J. W., on, ii. 129. 

 Ocyroe niaciilata, ii. 129. 

 Oersted on bathymetrical lielts. i. 162. 

 Old Bahama Channel, i. 2. 

 Old-fashioned types in shallow water, i. 



L56. 

 Oolitic and breccia limestone at Loggerhead 



Key, i. 76. 

 Oolitic limestone, modern, i. 286. 

 Ooze adapted for preservation of animals, i. 



170. 

 Ophiactis swarming on sponges, ii. 113. 

 Ophidiidse, ii. 56. 

 Ophidinm cervinnm, ii. 26. 

 Ophiernus, ii. 5. 



Ophiocamax hystrix, ii. 5, 110, 111, 114. 

 Ophioconis miliaria, ii. Ill, 112. 

 Ophiocreas, ii. 5. 



Ophiocreas spinulosus. ii. 109, 114. 

 Ophiohelus umbella, ii. lit). 

 Ophiolipus Agassizii, ii. 115. 

 Ophiomastus secundus, ii. 113. 

 Ophiomitra valida, ii. 115. 

 Ophiomusium Lymani, ii. 114. 

 Ophionmsium planum, ii. Ill, 112. 

 Ophiomyces frutectosus, ii. Ill, 113. 

 Ophiomyxa flaccida, ii. 113. 

 OphiopsBpale Goesiana, ii. 111. 

 Ophiophyllum petilum, ii. 110. 

 Ophiothrix, colonies of, ii- 1 13. 

 Ophiozona nivea, ii- 5, llt>. 

 Ophiura Elaps, ii. 111. 

 Ophiurans, ii. 109. 



bathymetrical range of, ii. 114. 



Ophiurans, known previous to " Blake" Ex- 

 pedition, ii. •"). 



phosphorescence of, i. 199. 



lo port on, by 1. Lyman, i. xxi. 

 Ophiuridra, Lyman on. ii. 109. 

 Opisthoteuthis Agassizii, ii. 58. 

 Oplophorus, ii. 47. 

 ( h-hiculiua adunca. ii. 160. 

 Orbitolites, ii. 160, 161 

 Orbulina, i. 194. 

 Orbnlina universa. ii. 166, 167. 



Krolin on, ii- 167- 



Pourtales on, ii. 167. 

 Organic matter, at distance from shore, lim- 

 ited supply of, i. 269. 



as i' 1 lor deep-sea life. i. 313. 



held in suspension near shore, i. 2i>'.t. 

 ( Organs of sense, in deep-sea fishes, ii. 22. 



great development of, in embryos, i. 176. 

 ( Organs of vision of deep-sea invertebrates, i. 

 165. 



( hthagoriseus. i. 193. 



Oscillations of earth's surface, i. 126. 



< ►stracods, ii. 51. 



( Istraconotus spatulipes. ii. 42. 



Otoliths of fishes, in bottom deposits, i. 281. 



in fine muds, i. 145. 

 Otter, von. i. 42, 139; ii. 142. 

 ( Ixygen and carbonic acid in sea water, i. !."■ '7. 

 Oxygen in sea water, Dittmar on, i. 2'.'"). 



Jacobsen on, i. 295. 



Pacific and Atlantic isotherms, i. 248. 



Pselopatides confundens, ii- s> - 



Paguroidea, ii. 40. 



Palaechinidse, ii. H4. 



Palaeotropus Josephines, ii. 100. 



Paleopneustes hystrix, ii. 100. 



Palinurus, i. 175. 



Pallenopsis. ii. 50. 



Panceri on phosphorescence of marine ani- 

 mals, i. 198. 



Pandalus, ii. 46. 



Paraeyathus confertns, ii. 149, 150. 



Parasitic alga;, Geza Ent/. on, i- 214. 



Parasitic fungus. P. M. Duncan on, i. 166. 



Parasitism, different kinds of, i. 215. 



Parry on deep-sea temperatures, i. 46. 



Passage of littoral to abyssal regions, ii. 7. 



Passages between Windward Islands swept 

 clean, i. 236. 



Patterson, Carlile 1'.. i. vii, 4'.'. 



Patterson Deep, i. 106. 



Pecten Dalli. ii. 72. 



Pecten phrygium, ii. 72. 



Pecten Pourtalesianum, ii. 7:!. 



