Ogilby — On some Irish Fishes. 529 



Grougaunbarra — the " lakes at the source of the river Lee " alluded 

 to by Professor AUman — occurred about the same date, and that 

 from Loch Leven not long afterwards. Though, judging from 

 well-known habits in its congeners, it is probable that charr would 

 gladly make a meal of trout-fry and -ova ; still the breeding haunts 

 of the two species are so diverse, that they can hardly do much 

 damage. The lake near Dunfanaghy, mentioned by Templeton, is 

 probably Sessagh, where Mr. Lucas, of Letterkenny, tells me they 

 are found. To him I am also indebted for the locality of Lough 

 Yeagh in the same county ; and Mr. Connison, of Londonderry, has 

 taken numbers with tlie fly in the Mindorin and Minteagh lakes 

 of Innishowen. In Westmeath, Lough Owel, and in Wicklow, 

 Luggela, must also be added, while it appears that, in Cork, Inchi- 

 geelagh should not be expunged from the list of localities. They 

 have lately been introduced into Lake Gartiuardress, county Long- 

 ford : fide W. J. Hamilton. The usual size of Donegal examples 

 is from 7 to 10 inches. 



\_Osmerus eperlanus might be omitted from the Irish list. 

 There can be little doubt that Thompson's conjecture as to confu- 

 sion existing between this fish and the Atherine is correct.] 



Coregonus pollan. — Dr. Day does not mention the occurrence of 

 this species in salt or brackish water, though the fact is indisput- 

 able, as the following, from four distinct localities, will show : — 

 Two of these localities are recorded in the Field. Whether their 

 migration to salt water is unavoidable or intentional, remains an 

 open question ; but I certainly incline to the former opinion, be- 

 lieving that heavy floods, with which these fish are not strong 

 enough to cope, have swept them to the sea, where they have 

 lost their reckoning, and hundreds have probably perished, for 

 one that attained to a safe resting-place. The first occurrence 

 was recorded in the Field of January 5, 1878, by the late Mr. 

 Francis Francis, who obtained his examples from the coast of 

 Cheshire, between the mouths of the Dee and Mersey, where they 

 appear to have been taken in considerable numbers ; and in the 

 following issue of the same paper the identity of his specimens with 

 C. pollan is fully established on the authority of Dr. Giinther, who 

 personally examined them. Again, in the Field of January 19, 

 1878, Mr. E. G. Symes, of the Irish Geological Survey, records 

 examples from the estuary of the Erne ; it would seem also from 



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