Report of the United States Geological Survey of the territories . X x. -:??- -s~i ?? l f * * I ? PLATE 26. Page. Fig. 1. Scaphites nodosus, var. plbnus 429 1, a. A side view of the perfect large type-specimen of this variety. 1, 6. A peripheral and aperture view of same. l,c. A septum of same, magnified to about one and a half diameters. I . >rl Pierre Group.) P ! I PLATE 2 7. Paso. Fig. 1. Nautilus Dekayi 496 1, a. A peripheral and aperture view of a small specimen, consisting of the inner septate , 6. A side view of same. 1, c. A peripheral view of another specimen

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Report of the United States Geological Survey of the territories . X x. -:??- -s~i ?? l f * * I ? PLATE 26. Page. Fig. 1. Scaphites nodosus, var. plbnus 429 1, a. A side view of the perfect large type-specimen of this variety. 1, 6. A peripheral and aperture view of same. l,c. A septum of same, magnified to about one and a half diameters. I . >rl Pierre Group.) P ! I PLATE 2 7. Paso. Fig. 1. Nautilus Dekayi 496 1, a. A peripheral and aperture view of a small specimen, consisting of the inner septate , 6. A side view of same. 1, c. A peripheral view of another specimen, showing the sinuosity of the , d. A side view of a younger specimen. 1, e. Surface-markings of last, magnified. Fig. 2. Nautilus Dekayi, var. Montanaensis 4J8 2, a. A side view of a large specimen of septate part, being maiuly an internal cast (type of the variety).2,6. A peripheral and aperture view of , c. A peripheral and aperture view of a young ,tf. A side view of , c. Surface-markings of same, ,/. A side view of a larger specimen. Fort I r

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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherwashi, bookyear1876