MUSEUM OF COMPARATIVE ZOOLOGY. 19 
and also the same species of Cystechinus, with a hard test, and of Phor- 
mosoma, which we had obtained before on the line from the Galapagos 
to Acapulco. Besides these, there came up a number of specimens of 
an interesting species of Pourtalesia, most closely allied to Pourtalesia 
miranda, the first type of the group dredged in the Florida Channel by 
Count Pourtalés. 
The deeper haul was especially rich in Holothurians, among them 
a fine large white Cucumaria, some specimens of Trochostoma, several 
species of Benthodytes, some of them remarkable for their white color, 
their huge size, and the comparatively small number of ventral tentacles. 
With these were numerous specimens of an interesting species of Eu- 
phronides. In this haul I was specially struck with the Elasipoda, and 
the great variety in the consistency of the skin in individuals of one and 
the same species; it varied in different individuals from extreme tenuity 
to a comparatively tough gelatine-like consistency. On carefully sifting 
the mud, we found a number of interesting Foraminifera, and of deli- 
cate and minute Gasteropods and Lamellibranchs, fragments of the shell 
of an Argonauta, and two species of a huge ribbed Dentalium. Among 
the Starfishes were specially noticeable a large Brisinga, a long-armed 
Cribrella, and several species of Astropecten. The usual types of Worms 
were found in the mud at these greater depths. In addition to a num- 
ber of Macruroids, we obtained a pink Aphyonus, a large black Beryx- 
like fish, a fine Nettastoma, and a couple of species of Lycodes. The 
usual surface species of Stomias and of Scopelus also came up in the 
trawl. Among the Crustaceans were a fine lot of Arcturus, of Colos- 
sendeis, of Glyphocrangon, and of a Caridid with a deep blue patch on 
the base of the carapace, making the strongest possible contrast to the 
dark crimson coloring of the rest of the body. Blue is a very unusual 
color in the deep-sea types, although the large eggs of some of the 
deep-sea Macrurans are often of a light blue tint. 
We brouglit up in the trawl at various times, and subsequently also 
in the Tanner net, from depths of less than 200 fathoms, the same 
gigantic Ostracod which I mentioned before, several specimens of Atolla, 
and fragments of a huge Periphylla, which must have been at least 
fifteen inches in diameter; also a most interesting new type of Bougain- 
villia, remarkable for having eight clusters of marginal tentacles, but 
only four chymiferous tubes. Of course neither these Acalephs, nor some 
of the Beryx-like fishes, of the Scopelids, Stomias, Melamphaés, and the 
like, which were brought up from less than 300 fathoms by the Tanner 
net, can any longer be considered as part of the deep-sea fauna. 
VOL. XXIII. — NO. 1. 6 
