1883. | 
anterior bell. 
The Siphonophores. 
839 
Monophyes is therefore difficult to determine. 
The strict homology of the single nectocalyx of 
In connection 
? ete 
af 
Ws 
i 
A 
ee 
Poo Pa { 
A É 
NA bsssprte tte 
a nereerrn rn 
a 
os 
Ki 
ÈA 
Ti y 
4 kon 
Çi ee 
is 
JEN 
Y 
Fi. 5. 
Covering 
—Praya diphyes Köll. a, anterior bell; 4, posterior bell (nectocalyx); æ, 
Scale; f, polypite; s, stem; ss, somatocyst; /, tentacle. 
with Monophyes a very curious medusa from Newport, R. I., as 
well as from many other localities, ought to be mentioned. This 
