INDEX 



ACTINIARIA, 36, 93 



- two remarkable genera of, 15 

 Aegir, 15 



Agassiz, A., on colour of Ccelen- 

 tera, 65 



- on Echinoidea, 101, 103 

 Agassiz, L., on board the 



' Hassler,' 12 



'Albatross,' American vessel, 15 

 Alcyonaria, 95 

 phosphorescence of, 81 

 Amphipoda, 124 

 Anemones of deep water, 36, 92 



- two remarkable genera of, 

 15 



Annelida, 117 



Ascidia composite, 146 



- salpiformes, 147 



- simplices, 142 

 Asteroidea, 104 



BARRIERS of temperature, 32 



Bathynomus, 129 



Beddard, F. E., on Isopoda, 127 



Benthos, 53 



Berycidse, 154 



' Blake,' American vessel, 12 



Blue mud, 42 



Brachiopoda, 115 



Brachyura, 138 



Brisinga, 9, 105 



Buchanan's experiment, 19 



CARPENTER, P. H., on Cri- 



noidea, 100 

 ( 'ephalodiscus, 113 



Cephalopoda, 120 



' Challenger,' H.M.S., voyage 



of, 12 



Cirripedia, 130 

 Coelentera, colour of, 65 



- of deep sea, 91 



Colour of the deep-sea fauna, 

 59, 66 



- of the deep-sea fish, 60 

 Copepoda, 124 



Corals, 94 

 Crinoidea, 99 

 Crustacea, 123 

 colour of, 63 



DARKNESS of the abyss, 22 

 Diatom ooze, 39 

 Dipnoi, 149 



ECHINODERMA, 1>9 



- colour of, 64 

 Echinoidea, 101 

 Eels, 165 

 Elasipoda, 106 

 Elasrnobranchii, 148, 153 

 Eryonidas, 135 

 Eyes of abysmal animals, 67 

 of deep-sea Crustacea, 72 



