52 BULLETIN OF THE 
Doliolum, Sagitta, Hyalea, Creseis, and a couple of species of Macrurans. 
The poverty of this deep haul may be accounted for by the correspond- 
ing poverty of the surface. The surface tow-nets hauled for nearly 
twenty minutes contained scarcely anything beyond a few Sagitte, Ap- 
pendicularie, Copepods, and pelagic fish eggs, and perhaps a larger 
number of bells of Diphyes and Crystallodes than in the Tanner net ; 
yet the sea had been smooth during the night, and up to 9 a. m., the 
time of the haul, not a breath of wind had ruffled the surface. Our 
position, Hy. Station 2628, was a few minutes of latitude south of the 
equator, about 250 miles from the Galapagos, and about the same dis- 
tance from Cape San Francisco ; the depth probably between 1,500 and 
1,800 fathoms. Soon after, the open tow-net was also hauled from a 
depth of 200 fathoms up to the surface. In addition to the species enu- 
merated above, we obtained Sergestes, larvae of Penzids, a bright yellow 
olis, a large Stomobrachium, and numerous bells of Crystallodes and 
Diphyes. The wire rope passed through myriads of Nautilograpsus 
swarming on the surface ; they literally choked the surface tow-net. 
On the 8th of April, about 7 a. M., Station 3414, depth 2,232 fathoms, 
350 miles from land, the sea was quite rough, a heavy swell rolling, and 
the trade wind was blowing briskly ; the Tanner net was sent to tow 
at 100 fathoms and closed by messenger; time of messenger in reaching 
the detacher, forty-five seconds; after towing the net about twenty 
minutes, it was hauled up to the surface. The lower closed part of the 
net, and the upper part, which had remained open the whole time, con- 
tained the same species. The lower part of the net contained a good deal 
more animal life, having been towed for twenty minutes at about 100 
fathoms from the surface, while the contents of the open upper part 
passed through 100 fathoms in about four minutes. The haul of the 
upper net consisted of a large red Cypris, a small transparent cuttle-fish, 
a few Doliolum, a large pinkish Hyperia, a large Cystisoma parasitic on 
Doliolum, Sapphirine, transparent Penzeids, bells of Crystallodes and 
of two species of Diphyes, fragments of Beroé, a number of Collozoum 
colonies, and Calanus and other Copepods. The lower net contained the 
same things, the Sapphirinze and Hyperiz being rather more numerous, 
and a few specimens of Atlanta which had not been obtained in the 
haul of the upper part of the net from 100 fathoms to the surface. 
An hour later, the Tanner net was sent to tow at a depth of 200 
fathoms. After towing for ten minutes the messenger was sent to close 
the net, the dredge rope having, ‘as in all cases of towing at inter- 
mediate depths, been gradually brought to be vertical before the net 
