INDEX 



169 



Pedicmlati, 155 

 Pelagic zone, 47 

 Pennatulictee, 96 

 Phoronis, 111 



Phosphorescence of Alcyo- 

 narians, 81 



- of deep-sea Crustacea, 80 



- of Echinoderma, 81 

 Phosphorescent light in the 



abyss, 24 



- organs of deep-sea fish, 77 

 Pigment in mucous membranes 



of deep-sea fish, 84, 152 

 Plankton, 52 

 Pleuronectidaa, 157 

 Polar currents, 30, 33 

 Polychaeta, 118 

 < Porcupine,' H.M.S., 8, 9 

 Porifera, 91 

 Pourtales, Count, 10 

 Pressure in the abyss, 19 

 Protozoa, 88 

 Pteropod ooze, 39 

 Pycnogonida, 139 



KADIOLARIA, 89 

 Radiolarian ooze, 39 

 Red mud, 37 



- off the Brazilian coasts. 



42 



Rliabdopleurcb, 111 

 Ross, Sir James, on the fauna 



of the deep sea, 3 



SALMONID^E, 163 

 Sargasso sub-zone, 48 

 Sars, 6, 9, 

 - on Amphipoda, 125 



Sars, on Brisinga, 105 



Schizopoda, 133 



Scopelidse, 158 



Serolis, 127 



Siphonophora, 92 



Size of deep-sea animals, 85 



- of fish, 153 



Smith, Mr., on Lamellibranchia, 



119 



Spatangoids, 101 

 Sponges, 91 

 Stebbing, Rev. T. R., on Amphi 



poda, 125 



Sternoptychidas, 158 

 Stomatopoda, 133 

 Stomiatidae, 162 



' TALISMAX,' French vessel, 12 

 Teleostei, 149, 154 

 Temperature of the abyss, 28 

 Thomson, Sir Wyville, on 

 Pourtalesia, 10 



- on Thavmastocheles, 137 



- on the darkness of the abyss, 

 22 



on the phosphorescence of 



the sea, 26 

 Thoracostraca, 133 

 ' Travailleur.' French vessel, 12 

 ' Triton,' H.M.S., 12 

 Tunicata, 140 



VEGETABLE life, absence of , 42 

 Verrill, on the illumination of 



the abyss, 23 

 ' Vittor Pessani,' Italian vessel, 



12 

 ' Voringin,' Norwegian vessel, 



14 



Kpottiswoode <( Co. Printers, Xeic-sfre?( 6'yv^/r, London. 



