150 CISCO. 
the second is adipose ; the pectoral has fourteen soft 
rays, the ventral eleven, the anal twelve, and the caudal, 
as well as I could count them, fourteen. It is a very 
beautiful and delicate fish, more so even than the white- 
fish. 
The Cisco is taken at Cape Yincent, with the eel-fly 
baited on a small hook and dibbled along the top of the 
water, and is said not to notice any artificial fly. I unfor- 
tunately had no chance to try, though I saw them rising 
and taking the natural fly readily. They do not rise with 
the rush of a salmon or trout, never springing out of water, 
and simply show their heads as they seize their prey. 
The eel-fly is a fat and sluggish fly, and it may be that 
the fish rising slowly, as they naturally do, would disco- 
ver the deception even if an imitation eel-fly were ofi'ered 
to them. This fly, as I have elsewhere observed, is simi- 
lar, both in appearance and habits, to the famous Euro- 
pean May-fly. 
The flsh known as the lake herring, salmo clujpeifor- 
mis, although very similar in appearance, has certain dis- 
tinctive characteristics ; for instance, there are minute 
teeth on the tongue, and the fin-rays, as I make them, 
are — 
D. 12 ; P. 16 ; Y. 11 ; A. 11 ; C. 19| ; B. 9. 
According to Lesueur — 
D. 12 ; P. 16 ; Y. 12 ; A. 14 ; C. 19f . 
In the lake herring I also found the first ray of the 
dorsal the longest, although Lesueur says it is simple 
and short ; the tail is deeply forked. The dorsal termi- 
nates nearly opposite the ventrals, and the second dorsal 
is opposite the centre of the anal. 
