304 Hon. H. T. Liddeli/s Observations on the 



No. XV. — Observations on the Young of Salmon, and some Remarks on the 

 Migration of Eels — By the Hon. H. T. Liddell, V. P. 



Read August 5, 1833. 



1 he above is an accurate portrait of a young Salmon,* ten days old, and 

 was copied immediately after death, from one of twelve, whereof the 

 remaining eleven were swimming about, very lively, in a basin of fresh 

 water at Freelands, the seat of Lord Ruthven, on the banks of the River 

 Erne, Perthshire, on the 8th of May, 1833. 



The roe had been discovered by Lord Ruthven's fisherman, in the Erne, 

 at the moment of vivification, under a portion of the bank that had given 

 way after a flood. 



The bag, below the fish, appeared to be the ovum itself remaining at- 

 tached to the body generated within it, being a clear amber colour, red 

 near the gills. The eyes were very large and dark, and the body perfectly 

 transparent, so that the whole globe of the eyes, and the line of the spinal 

 process, were distinctly visible as the fry swam in the water. 



The whole intestinal organization, air bladders, &c, seem to be con- 

 tained in the bladder-like vesicle below, which, at this period, is distended 

 with air, and is so large as to prevent the fry from resting, except on their 

 sides among the gravel. 



This air is either expired or absorbed as the fry become stronger, and 



* The accompanying Portrait can no longer be affirmed accurate, as it is done from re- 

 collection after the lapse of more than two years. The original Portrait, sent with this 

 Paper to the Natural History Society, has been lost by the person to whom it was en- 

 trusted. H. T. L.— 11th July, 1836. 



