APPENDIX. 
495 
Esox Lucius. 
Salmo Trutta. 
— Umbla . 
Anguilla acutirostris. 
Those found in Lough Neagh, and not in Lake Geneva, are, 
Gasterosteus aculeatus. 
— pungitius. 
Abramis Brama. 
Salmo Salar. 
— Eriox. 
— Fario. 
— ■ ferox. 
Coregonus pollan. 
Anguilla latirostris. 
— mediorostris. 
Petromyzon marinus. 
— Jluviatilis. 
— Planeri. 
Ammoccetes branchialis. 
Those obtained in the Lake of Geneva, and not in Lough Neagh, are, 
Coitus gobio. 
Cyprinus carpio. 
— ■ tinea. 
— alburnus. 
— jaculus. 
— bipunctatus. 
— phoxinus. 
Coregonus thymallus. 
— fera. 
— liiemalis. 
Lota vulgaris. 
Here we find the general result that might be anticipated from the geo- 
graphical position of the two lakes, the more northern being the richer in 
species of the genus Salmo ; the more southern in species of the Cyprinidce ; 
for it is well known that in continental Europe the Salmonidce increase 
in number northward, and the Cyprinidce southward. 
The value of the fishes of the northern lake is vastly greater than that 
of the southern. The most striking difference in connexion with the 
species which are common to the two lakes is, that eels, which are rare at 
Geneva, are abundant at Lough Neagh. There are four fisheries at which 
they are taken in the autumn, on descending from the lake to the sea. 
The greatest of these fisheries is at Toome, where the waters of the lake 
are discharged into the river Bann. Here from 50 to 60 tons weight of 
eels are annually taken in the season. So many as 70,000 fish, varying 
from ^ lb. to 5 lbs. in weight, have been caught in one night. I have 
myself seen 10,000 taken. They are sold at the fishery at 2 d. per lb. ; 
but the greater portion of these is sent alive, in well-boats, to London, 
where they produce from 10^. to Is. per lb. The only species of fish at 
Geneva, of which we have regular returns of the number captured, is the 
Salmo Trutta, and I regret that, owing to its being captured at L. Neagh 
