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APPENDIX. 
Beroe Ovum. 
Faun. Green. No. 355. 
Baffin’s Bay ; not unfrequent, but very delicate in texture, and difficult to 
procure for examination without injury. This species is easily distinguishable 
from others, as well by its very long cirri, as by the inequality of its ribs and 
their included sides ; the body being laterally compressed, and the ribs on 
the compressed sides (two in each) smaller than the others, and ending before 
they reach the terminal apertures ; whereas the four ribs between which the 
uncompressed sides are included, have no termination, but run into each 
other, completing the circumference ; the openings into the central internal 
cavity are between the latter. 
In a note in the Rcgne Animal, 4, 59, it is supposed that the Beroe Ovum of 
O. Fabricius, and the Medusa Pileus of Gmelin, are the same species ; but the 
abovementioned particulars (which are also noticed by Fabricius,) distinguish 
them apart, and place the B. Ovum in a different subgenus of the Rkgne 
Animal, viz., the Callianire of P^ron. 
Beroe Cucumis. 
Faun. Green. No. 853. 
Common in Baffin’s Bay, and on the coast of New Georgia; agreeing in 
all respects with the description in the Faun. Green., except that Fabri- 
cius has omitted to mention the lateral openings of the ovaries. This 
species is well distinguished from others by the absence of cirri, by its red 
colour, caused by innumerable minute red spots on the surface of the internal 
cavity seen through its transparent body ; and by the ribs, as well as the sides 
between them, being similar and equal, the former running into and ending 
in the terminal apertures. 
