. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. Arrangement of the Family Salmonidse. 407 sHglitly notched posteriorly, and correlated with this the n)ain frontal ridges are wide apart and parallel, whilst the supraorbital flanges are narrow and taper anteriorly. In the Pacific species the mesethmoid is much smaller and is forked posteriorly, the frontal ridges converge anteriorly and the supraorbital flanges are broad. Thus the genus Onco- rhynchus, Suckley, can be no longer maintained, unless it be considered that the cra
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. Arrangement of the Family Salmonidse. 407 sHglitly notched posteriorly, and correlated with this the n)ain frontal ridges are wide apart and parallel, whilst the supraorbital flanges are narrow and taper anteriorly. In the Pacific species the mesethmoid is much smaller and is forked posteriorly, the frontal ridges converge anteriorly and the supraorbital flanges are broad. Thus the genus Onco- rhynchus, Suckley, can be no longer maintained, unless it be considered that the cranial characters warrant its separation from Salmo ; in that case Oncorhynchus will include not only the Pacific Salmon, but the Pacific Trout also. Oiico- rhynchus is said to have a longer anal fin than Salmo, but in Fiff. 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 London, Taylor and Francis, Ltd
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