348 
THE VOYAGE OF H.M.S. CHALLENGER. 
Station 117. 
Organism-, prom 
SfRPACX-Nrrs. 
Station 1 18. 
masthead. At 12.40 p.m. stopped and sounded in 1375 fathoms (Station 117), and at 
2.1.) p.m. proceeded. At 4.10 p.m. stopped and sounded in 500 fathoms, deposit Red 
Mud, containing 6079 per cent, of carbonate of lime (Station 117a). Proceeded under 
steam for the rest of the day. 
Distance at noon from Cape St. Roque, 46 miles; from Pernambuco, 130 miles; from 
Bah’ a, 484 miles. Made good 115 miles. Amount of current 26 miles, direction 
N. 83° W. 
Surface Organisms. — The following species is recorded from the surface near Cape 
St. Roque : — 
Stomatopoda (Brooks, Zool. pt. 45). 
Gonochxctylus chiragra, Latreille, var. minutus, nov. 
'Willemoes-Suhm writes : “ I found in the tow-net sent down to a depth of 40 fathoms, 
while sounding in 500 fathoms, Lucifer, small Cephalopod, and Decapod larva ; another 
specimen of the Decapod larva was taken next day.” 
Moseley writes : “ A piece of Sargassum, caught in the patent log, was covered with 
Hydrozoa, Spirorbis , and Flustrci; I also found on it an Annelid larva with three sets 
of hooks. The sea-weed was covered with fructification, though apparently it had been 
Hoating some time in the water.” 
September 7, 1873. 
At 4 p.m. sounded in 16 fathoms, nearly due east of the tower at Fort Cabadello. 
Some sperm whales were seen. 
Station 118 (Sounding 197), Fernando Noronha to Pernambuco (see Charts 12 
and 15, and Diagram 4). 
September 8, 1873 ; lat. 7' 28' S., long. 34° 2' W. 
Temperature of air at uood, 78 '8 ; mean for the day, 77°‘0. 
Temj>erature of water at surface, 77‘*5 ; bottom, 35°*2. 
Depth, 2050 fathoms; deposit, Globigerina Ooze, containing 37*18 per cent, of 
carbonate of lime (see Murray and Renard, Deep-Sea Deposits Chall. Exp.). 
Under steam all night. At 5.45 a.m. stopped and sounded in 2050 fathoms. At 
7.30 a.m. proceeded south-west under sail and steam. 
