54 BULLETIN OF THE 
rapidly to the surface. The lower part of the net had closed satisfac- 
torily, and on examination was found to be barren of animal life, even at 
so small a distance from the land. The upper part of the net contained 
an unusually rich assortment of surface species, a large number of Sco- 
pelus, Euphausi, Leucifer, Sagitta, fragments and bells of Diphyes and 
of Crystallodes, species of Schizopods, Doliolum, Salpæ, and some unde- 
termined Pen:eids, with many Rhizopods, mainly specimens of Collozoum 
and of Acanthometra. 
On the 16th of April, at 10 A. m., about 120 miles in a northwesterly 
direction from Acapulco, probable depth over 2,000 fathoms, the sur- 
face tow-net was hauled, the surface being quite smooth, the wind hav- 
ing gradually lessened from the time we left Acapulco, It contained 
very little beyond the usual Sagitte, a small species of Salpa, a few 
Doliolum and Appendicularis, Calanus and other Copepods, Sergestes, 
Leucifer, and Euphausie, the same Mertensia we had found farther 
south, as well as the bells of a couple of species of Diphyes and of 
Crystallodes, apparently the same as those we obtained carlier in our 
cruise. 
We then sent the Tanner tow-net to tow for fifteen minutes at a 
depth of 175 fathoms; it was closed by the messenger as usual. The 
lower part of the bag contained the same species we had caught in the 
surface tow-net ; the number of individuals, however, was somewhat 
more abundant, and we obtained in addition Hyalea and Creseis, as 
well as Squilla larvae. 
On the 22d of April, about 75 miles southwest of Guaymas, in the 
middle of the Gulf of California, Station 3436, at a depth of 905 
fathoms, the Tanner net was sent to tow at a depth of 800 fathoms. 
We towed fifteen minutes, when the messenger was sent to close the 
net. We must have shoaled our water, as the bottom net came up 
containing some mud. We brought up in the net Periphylla, and a 
new genus of Bougainvillia, allied to Rathkea, having eight chymifer- 
ous tubes, but only four clusters of tentacles. 
The same day, Hy. Station 2637, at a depth of 773 fathoms, the 
Tanner net was again sent down to tow for twenty minutes, at a depth 
of 700 fathoms. The wire rope having fouled the detaching lines, the 
net came up open all the way to the surface. It must have towed very 
close to the bottom, as we brought up a fine specimen of Nettastoma, 
and two of the red deep-sea Caridids ; but otherwise it contained noth- 
ing which we had not on some previous occasion obtained inside the 200 
fathom limit from the surface. The proximity of land was apparent 
