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 Maui 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. 



Fig. 87. — Physalia Arethusa, 



