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 arid 

 examined, and then placed for preservation in the Anato- 

 mical Museum of the University ; the fish, h owever, iiad. 

 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 1\ 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 

 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 5| inches in length, by 



* A detailed account of the anatomy of this fish has since been published 

 in the Proceedings of the Royal Society of Edinburgh, vol. v. 1862-1866. 



