. Annual report of the regents of the university of the state of New York on the condition of the State Cabinet of Natural History and the historical and antiquarian collection annexed thereto. Science. Fig. 9. Gomphoceras septoris ( Lateral view of the outer chamber). Fig. 10. '•' "' (Showing the form of the aperture). Formation and locality. In limestone of the Niagara group, at Wau- watosa, Wisconsin. Dr. H. Day. GOMPHOCERAS SCRINIUM ( n. s.). A specimen consisting of the outer chamber and first septum, is of moderate size, transversely subcircular, with a very slight angularity on the
. Annual report of the regents of the university of the state of New York on the condition of the State Cabinet of Natural History and the historical and antiquarian collection annexed thereto. Science. Fig. 9. Gomphoceras septoris ( Lateral view of the outer chamber). Fig. 10. '•' "' (Showing the form of the aperture). Formation and locality. In limestone of the Niagara group, at Wau- watosa, Wisconsin. Dr. H. Day. GOMPHOCERAS SCRINIUM ( n. s.). A specimen consisting of the outer chamber and first septum, is of moderate size, transversely subcircular, with a very slight angularity on the ventral side. Outer chamber rapidly contracting from near the last septum to the aperture, giving it a somewhat conical form, the length being less than the transverse diameter of the septum. Aperture trilobed, the ventral opening small; dorsal opening moderately large and subtrian- gular : the proportions of the transverse and axial diameters are as three to four. Septa moderately deep, with a very regular convexity. Siphuncle situated at one-third the distance from the ventral margin to the centre. Surface marked only by irregular lines of growth. Formation and locality. In limestone of the Niagara group, from Illi- nois ; the particular locality unknown. 46. 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 New York State Museum. Albany, Regents of the University of the State of New York
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectscience, bookyear1853
