. A guide to the study of fishes. Fishes; Zoology; Fishes. Isospondyli 57 Other species are Phareodus acutus, known from the jaws; P. encaustus is known from a mass of thick scales with retic- ulate or mosaic-like siirface, much as in Osteoglossum, and P. cequipennis from a small example, perhaps Fig. 45.—Phareodus testis (Cope). From a specimen 20 inches long collected at Fossil, Wyo., in the Museum of the Univ. of Wyoming. (Photograph by Prof. Wilbur C Knight.) Phareodus testis is frequently found well preserved in the shales at Fossil Station, to the northwestward of Green River.
. A guide to the study of fishes. Fishes; Zoology; Fishes. Isospondyli 57 Other species are Phareodus acutus, known from the jaws; P. encaustus is known from a mass of thick scales with retic- ulate or mosaic-like siirface, much as in Osteoglossum, and P. cequipennis from a small example, perhaps Fig. 45.—Phareodus testis (Cope). From a specimen 20 inches long collected at Fossil, Wyo., in the Museum of the Univ. of Wyoming. (Photograph by Prof. Wilbur C Knight.) Phareodus testis is frequently found well preserved in the shales at Fossil Station, to the northwestward of Green River. Whether all these species possess the peculiar structure of the scales, and whether all belong to one genus, is uncertain. In Eocene shales of England occurs Brychcetus muelleri, a species closely related to Phareodus, but the scales smaller and without the characteristic reticulate or mosaic structure seen in Phareodus encaustus. The Pantodontidae.—The bony casque of Osteoglossum is found again in the Pantodontidce, consisting of one species, Pantodon huchholzi, a small fish of the brooks of West 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 Jordan, David Starr, 1851-1931. New York, H. Holt
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