Pay, 
1379. | Zoology. 653 
the family C/adonemide, which has an oval body with two long 
ciliated tentacles, causing it to strangely resemble the Ctenophore 
Cydippe or Pleurobrachia. ‘ Ctenaria inhabits the Pacific ocean, 
and is regarded by Heckel as an immediate transitional form 
from Gemmaria-like Anthomeduse to Cydippe-like Ctenophora. 
A full description and drawings will be published in a work soon 
to appear entitled “ System der Medusen,” to be illustrated with 
forty plates. He considers that the Ctenophora have originated 
from the order of Anthomeduse and family Cladonenide, an 
adds a table showing the homologies between the Ctenophores 
and the Craspedote Acalephs. © 
many of them, and its nature, sometimes quite transparent, some- 
times more or less blue, were in keeping with this kind of life. 
Exceptions to the rule, however, are now known to occur, In 
1875, when the broken Atlantic cable was being recovered, living 
polype-like creatures were brought up from a depth of 1780 
fathoms. Dr. W. Siemens presented them to the Zodlogical 
Museum in Berlin. More recently Prof. Studer, on board the 
German ship Gasel/e, obtained several specimens, complete and 
fragmentary, from the deep water, and was able to examine some 
of the animals while still alive. Twenty-four such cases he | 
records. The depth of sounding line at which these siphon- 
ophora were attached were more than 300 fathoms; eleven were 
(ele) 
d comparatively small 
water, else it will be in danger of bursting. This, indeed, seems 
to have occurred with Siemens’ Bathyphysa.—Anglish Mechanic. 
