. 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. ). 94 Conservation Department Description.— mm. stage. Fig. 21. Total length mm; length to vent mm; greatest depth mm ; diameter of eye mm; myomeres, 10 before vent, 19 behind (very incomplete). Embryonic marginal fin originating over end of yolk region, ris- ing to slight elevation at position of later soft dorsal, similar on ventral s
. 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. ). 94 Conservation Department Description.— mm. stage. Fig. 21. Total length mm; length to vent mm; greatest depth mm ; diameter of eye mm; myomeres, 10 before vent, 19 behind (very incomplete). Embryonic marginal fin originating over end of yolk region, ris- ing to slight elevation at position of later soft dorsal, similar on ventral side; candal lophocercal; pectorals rounded. Head and yolk region robust, body compressed behind vent; eye large; mouth large, oblique, with maxillary extending to middle of pupil; intes- tine ending at edge of marginal fin. Whole larva darkly pig- mented; many large stellate chromatophores massed over bul- bous head; fewer on sides of head and around jaws; yolk region well covered except on ventral aspect; myomeres with lines of large very spreading chromatophores (c. 2 wide on each myomere before vent, 1 wide behind) giving an almost even appearance of brown color in the preserved specimens, chromatophores extend on to base of pectorals, and slightly into caudal, otherwise fins colorless; eye Fig. —Micropterus dolomieu, 10 millimeters. Lake specimen with con- tracted chromatophores mm. stage. Fig. 22. Total length mm; length to vent mm; greatest depth mm; diameter of eye mm; myomeres 10 before vent, 18-20 behind (incomplete). Proportions and general appearance as hatchery stock, but difi^ering mostly in light color, resulting from contracted chromatophores which in other specimens were much expanded (contraction constant for lake specimens) ; however, number and arrangement of chroma- tophores identical in the two Please note that these images are extracted from scanned page images that may have been digitally enhanced for readab
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