Report on paleontology . BED GREENSAND MARLS. PLATE XLTX. EXPLANATION OF PLATE XLIX. Atcrta Vanuxemi Conrad (p. 287). Figs. 1. Profile view showing the inside of a septum, the two sinuses formed by the spire, and thebroad funnel-formed siphon. 2. View of the side of a small individual broken so as to show the inner volution, the filling of the large siphon and the junction of some of the septa with it. 3. View of the filling of a single chamber as obtained from a gutta-percha impression in the onter cup of the specimen figured on PI. L. Tlie cast straightened somewhat, givingless arcuatiou, bu
Report on paleontology . BED GREENSAND MARLS. PLATE XLTX. EXPLANATION OF PLATE XLIX. Atcrta Vanuxemi Conrad (p. 287). Figs. 1. Profile view showing the inside of a septum, the two sinuses formed by the spire, and thebroad funnel-formed siphon. 2. View of the side of a small individual broken so as to show the inner volution, the filling of the large siphon and the junction of some of the septa with it. 3. View of the filling of a single chamber as obtained from a gutta-percha impression in the onter cup of the specimen figured on PI. L. Tlie cast straightened somewhat, givingless arcuatiou, but greater length of the ventral portion than should be. The partmarked o represents the funnel-formed siphonal depression of the septum. Nautilus Cookana Whitf. (p. 285). 4,5. Dorsal and lateral views of a young specimen of the species, somewhat compressed dorso-ventrally, showing the distant septa and filling of the umbilical cavity. Am. Mus. Collection. 396 U. 5. GEOLOGICAL GURVEY MONOGRAPH XVIII PLATE XLIX. NAUTiLID^ OF THE EOCENE LAYERS OF THE UPPER BED GREENSAND MARLS. PLATE L. EXPLANATION OF PLATE L. Aturia Vanuxemi Conrad (p. 287). Fig. 1. Lateral view of a large cast from Shark River, showing the lines of septa very distinctly. The specimen is probably somewhat compressed laterally, but not otherwise distorted,The profile view on Fl. xux is of the same specimen. Kntgeia College, 398 U. S. GEOLOGICAL SURVEY MONOGRAPH XVIII PLATE L
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