. The Canadian field-naturalist. . Conesius plumbeus (above) and two specimens, ,one male and the other female, of Leuciscus rubrilateralis. barbel not evident. Teeth normally, but number often reduced, frequently by absorption, hooked and without grinding surface. Fins small, rounded; dorsal inserted well behind the ventrals, the tip, when de- pressed, over middle of base of anal; anal smaller than dorsal and of same shape; ventrals small, reaching nearly to vent in males, not so far in females; pectorals in- serted low, and reaching half way to ven- trals. Scales small, a little redu
. The Canadian field-naturalist. . Conesius plumbeus (above) and two specimens, ,one male and the other female, of Leuciscus rubrilateralis. barbel not evident. Teeth normally, but number often reduced, frequently by absorption, hooked and without grinding surface. Fins small, rounded; dorsal inserted well behind the ventrals, the tip, when de- pressed, over middle of base of anal; anal smaller than dorsal and of same shape; ventrals small, reaching nearly to vent in males, not so far in females; pectorals in- serted low, and reaching half way to ven- trals. Scales small, a little reduced and crowded anteriorly; lateral line complete at all stages. Coloration, dull, bluish black above; duller on the sides and passing into white below; a dark lateral band from black patch on operculum to base of caudal, sometimes not well defined anteriorly; a paler narrow band above, and scattered dark scales below; lateral surface below band, and extending from base of pectoral to caudal, red in breeding males; paler or wanting in females. Dorsal and caudal fins same color as the back; pectorals and anal dusted; ventrals whitish. Length 5-6 inches. Ruhrilateralis is very close to, if not identical with, L. carletoni Kendall, a spe- cies reported from the state of Maine by> Dr. Wm. Converse Kendall, (U. S. F. Com., Vol. XXII, 1902, pp. 357-8).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, The Ottawa-Field-Naturalists Club
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Keywords: ., bookauthorottawafi, bookcentury1900, bookdecade1920, bookyear1921
