. A biological survey of the Erie-Niagara system. Supplemental to Eighteenth annual report, 1928. Natural history -- New York (State); Fishes -- Erie, Lake; Fishes -- Niagara River (N. Y. and Ont. ); Erie, Lake; Niagara River (N. Y. and Ont. ). Fig. 20.—Stizostedion canadense griseum, millimeters mm. stage. Fig. 20. D. XIII, 15 (incomplete) ; A. I, 10 (incomplete) ; P. rather small; V. small, below P; C. emarginate. Total length mm; standard length 12,6 mm; length to vent mm; greatest depth mm; diameter of eye mm; myomeres, 21 to vent, 21 behind. Body elongate, dorsa
. A biological survey of the Erie-Niagara system. Supplemental to Eighteenth annual report, 1928. Natural history -- New York (State); Fishes -- Erie, Lake; Fishes -- Niagara River (N. Y. and Ont. ); Erie, Lake; Niagara River (N. Y. and Ont. ). Fig. 20.—Stizostedion canadense griseum, millimeters mm. stage. Fig. 20. D. XIII, 15 (incomplete) ; A. I, 10 (incomplete) ; P. rather small; V. small, below P; C. emarginate. Total length mm; standard length 12,6 mm; length to vent mm; greatest depth mm; diameter of eye mm; myomeres, 21 to vent, 21 behind. Body elongate, dorsal contour slightly depressed before soft dorsal and anal, and somewhat depressed just behind head; head pointed, sides quite parallel, eyes directed sideward; mouth terminal; large curved teeth in both jaws; maxillary reaching to posterior margin of pupil. First dorsal, consisting of 13 slender spines, originating just behind ventrals. Mostly opaque white. One large chromatophore on dorsal side of intestine at vent, and a double ventral series of c. 25 small, uneven, inconspicuous pigment spots (12 of them around anal) from vent to end of body; few in thoracic region and near posterior limit of lateral line. Breeding.—The sauger spawns in early spring on shallow gravelly or sandy bars, often running up rivers. AVith the begin- ning of warm weather it is reported to work its w^ay down stream again and off into deep water. Whether the postlarval stages are common, also, in deep water, or whether this specimen w^as an exception, cannot be determined on our scanty evidence. Fajviily Centrarchidae Micropterus dolomien Lacepede—Small-mouthed black bass Record of Capture.— Six specimens to mm. long were taken in a Helgoland trawl at 6 meters near Dunkirk on July 11, 1928. The mm. stage is hatchery material. The largest speci- men figured below came from the mouth of Eighteenmile creek on July Fig. 21.—Micropterus dolomieu, millimeters. Hatchery specimen
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Keywords: ., bookcentury1900, bookdecade1920, bookpublisheralbanyjblyoncompan
