THE PELAGIC FAUNA AND FLORA. 181 
Atlantic coast of the 
United States, from the 
Straits of Florida to the 
south shores of Cape Cod 
and Nantucket. Physa- 
lia, Velella, and Porpita 
are occasionally driven 
into Narragansett Bay ; 
the first is an annual vis- 
itant, the last has only 
been found once, in 
1875, and Velella has 
come into Newport har- 
bor during three sum- 
mers. It is undoubted- 
ly also to the action of 
the Gulf Stream that 
we must ascribe the pre- 
sence of the few species 
of siphonophores which 
appear on the southern 
coast of New England 
towards the middle and 
last of September, such 
as Eudoxia, Epibulia, and 
Diplophysa, which are 
found at the Tortugas. 
Agalma (Fig. 89) and 
Nanomya, on the con- 
self seen on the weather shores 
of Mäui masses of huge Oregon 
pine logs. On some of the Sand- 
wich Islands there are great ac- 
cumulations of such masses of 
drift-wood, probably brought 
from the northwest coast of the 
United States. Sloane, in 1696, 
recognized as coming from Ja- 
maica beans and fruits cast upon 
the shores of the Orkneys. 
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L 
= 
Fig. 87. — Physalia Arethusa: j. (Agassiz) 
