NARRATIVE OF THE CRUISE. 
833 
tively short distance from the North American continent. This apparently strict limitation 
of the Nemertea to the coast dredgings and at the same time their presence in this zone 
all over the globe is not without importance when attempts are made to estimate the 
ultimate phylogenetic significance of the group.” 
Juan Fernandez to Valparaiso. 
The Expedition left Juan Fernandez on the 15th November, but the wind persistently 
hanging to the northward, the American coast was made at Topocalma Point, 70 miles 
south of Valparaiso, and the ship steamed to the northward along the land. The 
weather was thick between Juan Fernandez and the coast of Chili, and the swell 
was from the westward. One sounding, temperatures, and a haul of the trawl were 
obtained between the two places in lat. 34° 7' S., long. 73° 56' W., in 2225 fathoms 
(see Sheet 38). 
The deposit at this Station was a blue mud, with a thin surface layer of a reddish 
colour, and contained 6 per cent, of carbonate of lime, which consisted chiefly of the 
shells of Globigerinas, and Orbulinas, and Coccoliths. The mineral particles consisted 
of quartz, mica, felspars, augite, hornblende, and glauconite. It is worthy of note 
that this was the first deposit in which glauconite was noticed since leaving the coast 
of Japan. 
In the trawl there were about fifty specimens of deep-sea animals, among which were 
the following, all of them new species, and five belonging to genera first discovered by the 
Expedition : — Ophiacantha sentosa, Lyman ; Ophiacantha cosmica, Lyman ; Pourtalesia 
ccirinata, A. Ag. ; Pourtalesia ceratopyga, A. Ag. ; Cystechinus vesica , A. Ag. ; Aspido- 
diadema microtuberculatum, A. Ag. ; Nymphon longicollum, Hoek ; Colossendeis media , 
Hoek ; Parelpidia cylindrica, Theel ; Psychropotes longicauda, Theel ; Benthodytes 
mamillifera, Theel ; Benthodytes sordida, Theel ; Benthodytes sanguinolenta, Theel ; 
Benthodytes abyssicola, Theel ; Porcellcinaster gracilis, Sladen. 
It was noticed that between Juan Fernandez and Valparaiso the water was of a 
greenish colour as the continent was approached, contrasting strongly with the deep 
blue colour which had been constant since leaving the coast of Japan. There was a 
corresponding change in the general character of the surface animals, Diatoms, Infusoria, 
and Hydromedusse becoming very abundant, and the pelagic Foraminifera disappearing 
from the surface gatherings. 
The Foraminifera. — The reader is referred to the Report on the Foraminifera, by 
Mr. H. B. Brady, F.R.S., 1 for details concerning these organisms, some species of which 
are so abundant on the surface, and play so large a part in the formation of deep-sea 
1 Report on the Foraminifera, hy H. B. Brady, F.R.S., Zool. Chall. Exp., part, x'xii., 1884. 
