. 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. shows, along the inner margin, a narrow shallow groove as if theedge of the opposite valve closed just within its margin. The shell is of more equal width throughout and more symmetrically oval, andis much larger than the L. spatulata of the Genesee slate. Geological formation and locality. In the shales of the upper part of the Ha-milton group, on the shore of Seneca lake; and near the base of the Port
. 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. shows, along the inner margin, a narrow shallow groove as if theedge of the opposite valve closed just within its margin. The shell is of more equal width throughout and more symmetrically oval, andis much larger than the L. spatulata of the Genesee slate. Geological formation and locality. In the shales of the upper part of the Ha-milton group, on the shore of Seneca lake; and near the base of the Portage group,at the falls below Trumansburgh, LINGULA PAL^FORMIS ()-Shell broadly subovate, convex at the umbo a ad depressed below, the length alittle greater than the greatest width, rapidly expanding for about two-thirdsthe length of the shell, below which it is abruptly rounded ; shell thick. Surfacemarked by strong concentric lamellose strise, and, in the exfoliated surface, byfine radiating striae. Geological formation and locality. In the shales of the Hamilton group, as-sociated with numerous known fossils, in a loose fragment of rock in the valleysouth of Cayuga
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectscience, bookyear1853
