124G 
THE VOYAGE OF H.M.S. CHALLENGER. 
St.^tion 346. 
A5IMAL8 FROM 
I)RKDGI. 
Density at 60° F. : — 
Surface, 
. 1-02624 
300 fathoms, . 
. 1-02570 
25 fatlioras, . 
. 1-02633 
400 „ 
. 1-02556 
50 „ . . 
. 1-02614 
800 „ 
. 1-02594 
100 „ 
. 1-02618 
1875 
. 1-02591 
200 „ 
. 1 02602 
Bottom, 
. 1-02622 
Depth, 23.50 fiithoms ; deposit, Globigerina Ooze, containing 8 5 '42 per cent, of 
carbonate of lime (see Murray and Renard, Deep-Sea Deposits Cball. Exp.). 
At 5.40 A.M. shortened sail. At 6 a.m. stopped and sounded 2350 fathoms ; the 
sounding-tube had sunk about a foot into the ooze, but with the exception of a few 
streaks on the outside it brought up no deposit. At 8 a.m. put dredge over and veered 
2900 fathoms. At 9.30 a.m. took serial temperatures down to 1500 fathoms. The 
carbonic acid was determined in water from 800 and 1875 fathoms, and amounted 
respectively to 45 ’5 and 39 ‘2 milligrammes per litre. At 1 p.m. commenced heaving in 
dredge, which came up at 3.45 p.m., with the swabs foul of the mouth of the dredge, 
but with several specimens attached to the swabs. In the dredge and attached tow-nets 
were about five litres of the deposit. Proceeded under steam and sail. A bird, probably 
a frigate bird, was seen while dredging. 
Cape Verde distant at noon, 1062 miles. Made good 88 miles. Amount of current 
29 miles, direction S. 72° W. 
The following species are recorded in the Zoological Reports from the dredge at this 
Station ; — 
A.STKKOIDEA (Sladen, Zool. pt. 51). 
Styraenster horridus, n.g., n.sp. Three specimens; obtained at no other locality. 
Recorded subsequently from Indian Ocean (“ Investigator”). 
Freyella tuherculata, n.sp. Two specimens ; obtained also at Station 89. 
Ophiuroidea (Lyman, Zool. pt. 14). 
Oj/hioglypha convexa, n.sp. Four specimens ; obtained also at Stations 241 
and 246. 
IIoLOTHURlOIDEA (Thdcl, Zool. pt. 39). 
Synapta abyssicola, u.sj). (?). Small fragment ; obtained at no other locality. 
OsTRACODA (Brady, Zool. pt. 3). 
Cytherc d<isyderma, n.sp. For distribution see Station 5. 
The Station-book records also a I’olyzoon. 
