MUSEUM OF COMPARATIVE ZOOLOGY. 51 
had closed, were carefully examined, using the same precautions to 
strain the water of the pans as on former hauls. With the exception 
of the fragments of a few decayed leaves, evidently caught while on 
their way to the bottom, the net contained nothing ; it was barren of 
animal life. 
The upper part of the Tanner net, which had remained open all the 
way to the surface, brought up the same species which on former occa- 
sions the net contained when towing at a depth of 200 fathoms from 
the surface. There were found a great number of small Doliolum and 
of a large Sagitta. The number of individuals as well as of species of 
Crustaceans in this haul was very marked. Several species of Leucifer, 
of Sergestes, of Schizopods, Copepods, and of highly colored Hyparie 
probably parasitic on a Salpa, which was abundant, as well as a number 
of Macrura fully as bright red as any of the deep-sea Schizopod types, in 
addition to the transparent pelagic types. We also obtained a Stomo- 
brachium, a large Beroé measuring nearly six inches in diameter, a 
number of bells of Diphyes, and a huge Ostracod allied to Crossophorus, 
with a thin membranous test, — a giant of its kind, measuring somewhat 
more than an inch in length. The largest Ostracod previously known 
is not more than one third of an inch long. The pelagic Benthodytes, 
which first came up in the trawl at Station 3,364, also occurred in the 
open part of the net. 
Among the so called deep-sea Medusz several specimens of Atolla 
and of Periphylla were found in the open part of the net. The net 
also contained a Leptocephalus and two other species of fishes, the one 
allied to the Scopelids, the other to the Stomiadz, many of which have 
been regarded as typical deep-sea forms. 
The surface at this point was also examined with the tow-net, and the 
pelagic animals found to be the same as those brought up in the open 
part of the Tanner tow-net on its way from the bottom. The num- 
ber both of species and specimens was, however, much less than in the 
Tanner net. ; 
On the following day, March 26, the Tanner tow-net was sent to be 
towed at a depth of 204 fathoms. After twenty minutes the messenger 
was sent down and the net hauled up. The bottom part of the net 
came up tightly closed. Its contents were examined in the same man- 
ner as before, in well strained water, and the water was found to be ab- 
solutely barren, while the upper part of the net, which came up open and 
was not more than eight or nine minutes on the way, was only fairly 
filled with surface life. The upper net contained a few specimens of 
