ACALEPH7R. 
f'i’oa (Fig. 92), is another very remarkable form of these strangely 
instituted organisms. 
Haying presented to the reader certain characteristic types of 
^ iusadse, we proceed to offer some general remarks upon the organiza- 
11 a nd functions of these strange creatures. We have, in short, 
Fig. 90. 
tom^ e f ^ e88 because they h 
hizotttoma Altlruvuudi. 
ave 
Iren special objects of ana- 
C& 1 and physiological study to some of our best naturalists. 
e Hedusse have 
skin. 
c ut ail 
We 
other means of breathing but through the 
remark all over the body of these zoophytes certain 
^feafp 0118 e t° n g a tions, disposed so as to favour the exercise of the 
iY e jj Uri 8 function. Certain marginal fringes of extended surface, as 
as the tentacle, are the special seats of the apparatus. The 
