INDEX 



169 



Pediculati, 155 

 Pelagic zone, 47 

 Pennatulidas, 96 

 Pkoronis, 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 

 Pleuronectidae, 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 



RADIOLARIA, 89 

 Radiolarian ooze, 39 

 Red mud, 37 



- off the Brazilian coasts, 



42 



Rhabdopleura, 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 Brisinya, 105 



Schizopoda, 133 



Scopelidas, 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 



Sternoptychidae, 158 

 Stomatopoda, 133 

 Stomiatidae, 162 



TALISMAN,' French vessel, 12 

 Teleostei, 149, 154 

 Temperature of the abyss, 28 

 Thomson, Sir Wyville, on 

 Pourtalesia, 10 



- on Tha/umastocheles, 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 

 ' Voring-in,' Norwegian vessel, 



14 



Spoltisu-oode A; Co. Printers, Neic-slreft Square, 



