884 FISH ES—SALMONIDA. 
be a different species from the Lake Herring. This opinion I formerly 
held, and introduced it into nomenclature, giving the fish the name of — 
Argyrosomus sisco. I find, however, nostructural character distinguishing 
the Cisco from the Lake Herring, and I have no doubt that they are spe- 
cifically identical, the Cisco being a local variety, modified in its habits 
by its residence in the smaller lakes. 
The following account of the habits of the Cisco of Lake Tippecanoe 
is furnished by Judge J. H. Carpenter, of Warsaw, Indiana (see Jordan 
Amer. Nat., 1875, 185.). 
‘‘Some years ago, probably five, these fish were discovered on the north side of Tip- 
pecanoe Lake, by Isaac Johnson, and at each retarn of their spawning season, which is 
the last of November, they have reappeared in large numbers. They are not seen at 
any other season of the year, keeping themselves in the deep water of the lakes. The 
general opinion is that they will not bite at a hook, but Mr. Johnson says that he has 
on one or two oceasions caught them with a hook. d ze * Mg : 
‘‘The spawning season lasts about two weeks, and they come in myriads into the 
streams which enter the lakes. There are large numbers of persors who are engaged 
night and day taking them with small dip-nets. They are caught in quantities that 
would surprise you could you witness it. Those who live in the neighborhood put up 
large quantities of them, they being the only fish caught in the lakes which will bear 
salting. Some gentlemen who have been fishing to-day (December 8, 1574) inform me 
that the run is abating, and that in a few days the fishes will have taken their depar- 
ture for the deep water of the lakes, and will be seen no more until next November.” 
A. correspondent (‘‘H. 8. V.”) gives the following account of the Cisco 
of Geneva Lake, Wisconsin: 
‘‘This graceful, silvery fish is found in largest numbers in the water of Lake Geneva, 
Wisconsin. It is seen and caught there only about ten days in the year, usually in the 
month of June, coming to the surface of the lake from the deeper spots to feast upon 
the Cisco fly, somewhat similar to the common sand-fly, only larger, which appears at 
that time and again disappears after the fish have had all they want of them. The fish 
go in schools and are caught best when the weather is warm and the flies are thickest, — 
usually from six to ten o’clock in the morning. A very small hoek and light line is 
used, no sinking or bobber. The fly is used for bait, the fish jumping for it frequently 
before it strikes the water. At times the water is kept in a constant ferment, and many 
of the fish can be seen part way out of water at once. When they are biting, the 
sportsman who is most active gets most fish. The Cisco fish average from six inches to 
a foot in length, a slender, graceful, silvery fish. They do not make a very strong fight 
.for life; if it were not for the rapid biting, a fisherman would miss the locked for ex- 
citement in the sport.” 
97. COREGONUS NIGRIPINNIS (Gill) Jordan. 
Bluecfin; Blackefin. 
Argyrosomus nigripinnis, GILL, MSS. in Milner’s Rept., U. S. Fish Comm , 1572 3, 87. 
Coregonus nigripinnis, JORDAN, Man. Vert., 2d Ed , 1878, 275. 
