304 General Notes. [March, i 
expose this organ and its appendages, the Cunina colonies, more 
clearly, so that only the line of their former attachments is repre 
sented. Upon the tongue will be observed on each side an 
elongated cluster (a), made up of spherical, flask-shaped and 
star-like bodies, each of which, when magnified slightly in siz, 
will be found to be a medusa of different torm from its associates, 
since in different stages of growth, but all attached to a commot 
stolon which itself hangs from the tongue of the Carmarita 
These clusters or colonies of young Cuninz, as is well known 
ultimately dissolve their connection with the stolon and swim 
away as free medusz. 
As my object in the introduction of this cut is simply to al l 
attention toa mutual relationship of the two genera, boua 
which occur in our waters, I will not consider many theo } 
points which are closely connected with this relation aa . 
colony of young Cuninz and a Siphonophore. I have been 
to confirm an important observation of Uljani 
ranean species of Cunina does not always attach i 
tongue of Carmarina, but is sometimes found fastened eveni 
the walls of the umbrella. Such observations would i) 
show that attachment to the tongue is not essential to the 
the young Cunina colonies. Must it necessarily be su pte 
that the young Cunina cannot also fasten itself to another a. 
as Professor McCrady has shown C. octonaria clings ee ‘ 
bell-walls of Turritopsis? If attached to the bell a sae 
it can get little of the common food with its host. an 
is it anything more than a parasite or is it a true pe tot 
Observation must yet show that the attachment © a| 
other is necessary for the life of either. ` 
In studying a specimen of Carmarina with Cuine an 
I separated one of these colonies of Cunina aoe nori 
and found thatit lived some time in that condition. eloped is 
died before any of the buds attached to the stolon dev of Cutis 
free medusæ. The difference between such a Cotony = porgi” 
Siphonophore to one or the other as essentially ee 
While, without doubt, we must regard the attac 
colonies as representing a hydroid stage, 
resemble more closely a budding Lizzia or 
