ZOOLOGY OF SEAHAM HARBOUR. 81 
venture to put forward my drawing, made from a fine healthy 
animal, a few hours after its capture; and although deficient in 
many respects, it, perhaps, gives a better idea of the form and 
arrangement of the tentacles, than that already published. Those 
ebtained here do net attain the large size of the Stromness 
Specimens as mentioned by Dr. Johnston. 
The medusoid has not been figured in any British work, so 
faras lam aware. Forbes, in his ‘‘ Naked-Eyed Meduse,” figures 
some forms for which the genus Steenstrupia was constituted, 
conjecturing at the time, that they might be the medusoids of 
Corymorpha. His figures and descriptions do not, however, agree 
with those under consideration, which are much more elegant in 
form and appearance generally, than those he describes. I would, 
therefore, offer the following account of the growth of the zooids 
far as I have been able to trace them. 
The gonophores are produced from branching processes, which 
have their origin near the base of the second cirelet of tentacles ; 
each stalk bears several gonophores in various stages of develop- 
ment, (see figure 7). At the earliest stage that I have noticed 
them, (figures 2, 3), they are little pyriform bodies, about 525 
of an inch in their greatest length. The thicker or distal end 
then puts out four lobes, one much larger than the others, within 
each is a patch of colour of a pale pink tint (figures 4, 5), there 
is also a faint indication of the peduncle and radiating canals, 
which are, however, more apparent in the next stage (fig. 6). 
The zooid would then appear to distend itself, becoming, in 
consequence, more transparent, allowing the form to be better 
seen. The next stage that I observed showed a considerable 
increase in dimensions; the largest lobe now appeared as a 
granular mass, which differed greatly from the others in the 
character of its contents (fig. 8). 
Finally, the attached zooid attaims full development, and 
becoming detached from the parent, by a long continuance of 
spasmodic jerks, floats away as an exquisitely delicate little bell, 
and continues its voyage by means of the contractions and ex- 
pansions so characteristic of these animals, first darting to the 
right and then to the left, rising through the water in a zig-zag 
VOL PT. Ul, J 
