SUMMARY OF RESULTS. 
737 
Heteropoda (Smith, Zool. pt. 72), 
Cardiopoda placenta (Lesson). Obtained at no other locality by the Challenger. 
Recorded from Pacific and Atlantic Oceans. 
Tunicata (Herdman, Zool. pt. 38). 
Diplosomoides mode, n.g., n.sp. One specimen ; obtained at no other locality. 
In the foregoing list 27 species are enumerated, of which 6 are new to science, 
including representative of 1 new genus ; 5 of the new species were not obtained 
elsewhere. 
Surface Organisms. — The following are recorded in the note-books as having been 
taken in the tow-nets in the neighbourhood of the Arrou Islands : — Diatoms of various 
forms, Vo rticella abundant on the Diatoms, Pyrocystis, Peridinium, Oscillatoriacese, 
small - Globigerina with spines (the first taken in the tow-net since leaving Raine Island), 
Acanthometra, Diphyes, Echinoderm larvae, Sagitta, Gypridina , Saphirina and other 
Copepods, Hyperids, Thysanopoda , Lucifer in immense numbers, Zoeae and other larval 
Crustacea, small Lamellibraneh and other shells, Atlanta , Styliola and other Pteropods, 
Salpa, Appendicularia, and many fish eggs. Shoals of fishes were seen, and Ehizostoma 
and other jelly-fish were observed floating past the ship. 
Station 191 (Sounding 323), Arrou Islands to Banda (see Charts 31 and 32, 
and Diagram 1 4). 
September 23, 1874; lat. 5° 41' S., long. 134^ 4' 30' 7 E. 
Temperature of air at noon, 81°*8 ; mean for the day, 80°'l. 
Temperature of water : — 
Surface, .... 
82-2 
500 fathoms, 
41-5 
100 fathoms, 
67-5 
600 „ 
40-5 
200 „ ... 
51-5 
700 „ 
39-8 
300 „ ... 
46-0 
Bottom, 
39-5 
400 „ ... 
43-2 
Density at 60 c F. at surface, 
1*02496. 
Depth, 800 fathoms; deposit, Green Mud, containing 13*95 per cent, of carbonate 
of lime (see Murray and Renard, Deep-Sea Deposits Chall. Exp.). 
Arrou Islands. 
Organisms from 
Surface-Nets. 
Station 191. 
At 5 A.M. got up steam. At 7.30 a.m. weighed anchor and proceeded under steam 
out of Dobbo Harbour. At 9.30 a.m. sounded in 48 fathoms. At 10.10 a.m, stopped 
