SIXTY-TWO SPECIES OF FISHES FROM LAKE ERIE 
349 
series. A single series occurs on lateral line from behind head to caudal, represent- 
ing the broad lateral band of the adult. Others are apparent over gill region, stomach 
region, and along dorsal aspect of intestine below the surface, a few below head, 
followed by a short double series of about 9 in the jugular region, and a prominent 
double series to caudal. 
BREEDING 
The stone-roller minnow spawns in the spring, running up small brooks for the 
purpose, depositing its eggs among the stones near shore. In the breeding season 
the males have the head or even the whole body covered with large, round tubercles, 
Figure 60 . — Campostoma anomalum, 9. 75 millimeters 
which are more extensively developed than in other cyprinids. The iris becomes 
orange, and the dorsal and anal fins on either side of the dusky crossbar are fiery red. 
Family AMESUR1D/E Catfishes 
23. Xctalurus pnnctatus (Rafinesque). Spotted catfish, silver cat; channel cat. 
RECORD OF CAPTURE 
This catfish is common in Lake Erie, the Niagara River, and the larger trib- 
utary streams of the Niagara. Its young frequent sheltered bays and the mouths 
of creeks. 
DESCRIPTION 
The more slender, elongate body, compressed posteriorly, and the forked tail, 
as well as the joining of supra-occipital and predorsal processes to form a bony ridge 
between head and dorsal fin, and the free posterior margin of adipose distinguishes 
it from Noturus and Schilbeodes. 
32.6-millimeter stage . — Total length, 32.6; standard length, 26.9; length to vent, 
13.0; length of head, 7.8; greatest depth before vent, 6.3; depth behind vent, 5.0; 
diameter of eye, 2.0 millimeters. Vertebrae, about 16 to vent plus 28 behind. Dorsal 
I, 6; anal 24 (26 apparent in stained specimen); posterior margin of adipose free; 
caudal forked. Body slender; head slightly convex above; very long maxillary 
barbels, longer than head; pectoral spine about two-thirds length of head; slender 
humeral process about one-half length of pectoral spine. 
Pigmentation. — The body is nearly white with tiny brownish chromatophores 
sparsely distributed over entire surface. The heavier subsurface spots occurring 
over stomach region are emphasized by clearing. All fins are marked with very 
small chromatophores. 
BREEDING 
The spotted catfish spawns in June in weedy places near shore. 
