THF VOYAGE OF H.M.S. CHALLENGER. 
Statiok 49 . 
Statiox 50 . 
Axivaui rtuJM 
lhuwl AXU 
TkA«u 
228 
Will pi' i ' s-Suhm writes: “Among great numbers of Crustacea, worms, &c., obtained 
in ti e dredge, some Squillids were remarkable for their Bopyri , and some specimens of 
I /< h'irti were procured. Nymphon was in great abundance, and the various stages in 
its development could be followed ; the larvae just hatched had only three pairs of legs, 
tin; fourth being represented by two rudiments merely at each side of the tail.” I may 
mention that 1 found the Dentalia inhabited by Sipunculi quite in the same way as 
they are on the Danish coasts. 
Station 50 (Sounding 108) Halifax to Bermuda (see Chart 9 and Diagram 2). 
May 21, 1873 ; lat. 42° 8' N., long. 63° 39' W. 
Temperature of air at noon, 49° ‘3 ; mean for the day, 46° ‘9. 
“ r 7 
Temperature of water : — 
— 7 
j f — 
Surface, .... 
450 
700 fathoms, . 
38-1 
100 fathoms, . 
45-2 
800 „ 
37-8 
200 „ 
41-3 
900 
37-6 
300 „ . . . 
395 
1000 
37-4 
400 „ 
39 0 
1100 „ 
37-2 
500 „ ... 
38-7 
1200 
370 
600 „ 
38-4 
Density at 60° F. at surface, 
1-02451 ; bottom, 1 -02546. 
Depth, 1250 fathoms ; deposit, Blue Mud, containing 16‘25 per cent, of carbonate 
of lime (see Murray and Renard, Deep-Sea Deposits Chall. Exp.). 
At 6 a.m. shortened sail, and got up steam to sound and dredge. At 6.40 a.m. 
-ounded in 1250 fathoms. At 8 a.m. put over dredge and veered 2000 fathoms. At 
1.15 p.m. hove up dredge, containing a mass of mud and a few specimens. At 2 p.m. 
the trawl Wiis sent down with 1800 fathoms of rope. Obtained serial temperatures down 
t<> 1200 fathoms. At G p.m. sounded to obtain bottom water for analysis; a large 
Pinna tula was brought up on the sounding-line, with a handsome Euryale attached. 
Hove up trawl, which contained a number of specimens. 
Distance from Bermuda at noon, 596 miles. Made good 53 miles. Amount of 
current 26 miles, direction S. 
The folio ving species are recorded in the Zoological Reports from the dredge and 
trawl at this Station : — 
Monaxokida (Ridley and Dendy, Zool. pt. 59). 
'LnUrrium semUulwntes (Schmidt). One specimen; obtained also at Stations 49 
and 135. 
