SIXTY-TWO SPECIES OP FISHES FROM LAKE ERIE 
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ceding stage principally in further development of dorsal and anal, appearance of 
ventrals, and heavier pigmentation. 
30. 7 5 -millimeter stage. — Total length, 30.75; standard length, 25.0; length to 
vent, 19.5; length of head, 8.5; greatest depth, 8.5; diameter of eye, 2.6 millimeters. 
Myomeres, 19 to vent plus 17 behind. Dorsal III, 20; anal III, 5. Characterized 
by a strong serrated spine at beginning of dorsal and anal, and a barbel on either 
side of upper jaw (2 in adult), distinguishing it from Carassius auratus which has no 
barbels. Body stout, mouth moderate. 
Pigmentation. — Chromatophores are thickly massed on upper lip and top of 
head spreading over snout and below eye. Dorsal edge of iris is speckled. Heavy 
pigment spots occur on dark background over head and along dorsal aspect to dorsal 
fin. Chromatophores are heavily distributed to lateral line, scarcer below. Ventral 
aspect is unmarked except for a few chromatophores near vent and a subsurface 
series from vent to caudal. All fins, with the exception of ventrals, are marked. 
BREEDING 
The spawning season of the carp lasts from June until August. They are very 
prolific and grow rapidly. T. H. Bean (1903) states: 
During the spawning the fish frequently rise to the surface, the female accompanied by two or 
three males. The female drops the eggs at intervals during a period of some days or weeks in 
shallow water on aquatic plants. The eggs adhere in lumps to plants, twigs, and stones. The 
hatching period varies from 12 to 16 days. 
12. Nocomis mieropogon (Cope). Crested chub, river chub. 
RECORD OF CAPTURE 
The crested chub was not found in Lake Erie, but was taken commonly by the 
survey in the warmer tributary streams. 
DESCRIPTION 
Young fishes of this species are distinguished from the allied genus Notropis by 
the presence of a maxillary barbel. They resemble closely, also, Semotilus atromacu- 
latus but differ in the position of this barbel which has its origin at tip of maxillary 
rather than well in advance of tip. 
22.0-millimeter stage.. — Total length, 22.0; standard length, 18.0; length to vent, 
11.6; length of head, 5.25; snout, 1.25; diameter of eye, 1.6; greatest depth before 
vent, 4.1; greatest depth behind vent, 3.0; length to dorsal, 11.5; to anal, 12.1 milli- 
meters. Myomeres, 22 to vent plus 15-16 behind. Dorsal III (very weak), 7; anal 
109774°— 32 3 
