300 Proceedings of the Royal Physical Society. 
III. Notice of the Anatomy of the new Ganoid Fish from Old Calabar, 
described by Dr John Alexander Smith at last Meeting. By Ramsay 
H. Traquair, M.D. 
Dr Traquair had received from Dr Smith several speci- 
mens of these curious fish, to be carefully dissected and 
examined, and then placed for preservation in the Anato- 
mical Museum of the University ; the fish, however, had 
only recently been put into his hands. He had not yet 
had time to make a detailed dissection of them. As far as 
the abdominal viscera were concerned, however, they ap- 
peared to agree with those of the Polypteri already described.* 
IV. Notice of the occurrence of double or vertical Hermaphrodism 
in a common Cod Fish, Morrhua vulgaris, recently taken in the 
Firth of Forth. By John Alexander Smith, M.D. (The specimen 
was exhibited.) 
Dr Smith stated he was indebted to Messrs John Ander- 
son & Son, fishmongers, &c., Eoyal Emporium, George 
Street, for sending him this very interesting specimen. 
Mr Anderson, in his note says, it seems to have both the 
male milt and the female roe, and is the first of the kind 
that has ever come under our notice. 
The cod was taken in the beginning of April, and was not 
remarked as being different in any way, externally, from 
the other well-developed specimens of cod fish. The genera- 
tive organs were small, but apparently of nearly the ordi- 
nary size of other fishes at this season of the year. They 
consisted of a perfect roe or ovary, on the left side of the 
body, measuring 4J inches in length, by about IJ inch in 
its greatest breadth, with a distinct and perfect oviduct 
attached ; on the right side, however, the organ was com- 
pound, consisting in its upper part of a second and smaller 
ovary, measuring 3 inches in length, by about the same j 
breadth as that of the left side ; and lying immediately 
below it, and surrounding the oviduct, were the numerous 
lobes of a milt, measuring about 5f inches in length, by 
* A detailed account of the anatomy of this fish has since been published I 
in the Proceedings of the Koyal Society of Edinburgh, vol. v. 1862-1866. i 
