. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 292. G () M P H () (â E K A S UNATl M. Hall. (Fig. 227.) (Pal. , \o\. v., Pt. II., p. :\U, PI. X(T.) Distinguishing ('hn rn cters.â Large size; regularly arcuate form; broadly oval cross- section, the lateral diameter longest; one side (dorsal) is concave, and the others are convex, the longitudinal sec- tion being Innate; large liv- ing chamber, with the great- est expansion anterior to the last septum; siphuncle ex- panded between the septa; lamellose lines of growth, and distinct longitudinal sti'irp. Found
. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 292. G () M P H () (â E K A S UNATl M. Hall. (Fig. 227.) (Pal. , \o\. v., Pt. II., p. :\U, PI. X(T.) Distinguishing ('hn rn cters.â Large size; regularly arcuate form; broadly oval cross- section, the lateral diameter longest; one side (dorsal) is concave, and the others are convex, the longitudinal sec- tion being Innate; large liv- ing chamber, with the great- est expansion anterior to the last septum; siphuncle ex- panded between the septa; lamellose lines of growth, and distinct longitudinal sti'irp. Found in the shales of the Hamilton group, at Hamburg, (after Erie Conntv, N. Y. (Hall.) Genus NAUTILUS. Breynius. [Ety. : Nautilos, sailor or navigator.] (1732: Dissert. Polytli., p. 11.) Shell with numerous volutions, coiled in a single ])hnie,the volutions contiguous, the later ones indented by the preced- ing ones. The septa are simple, concave upwards, with simple, arched or waved sutures. Siphuncle central or sub- central; lips sinuous; surface smooth or variously orna- mented. Nautilus MAGiSTER. Hall. (PL XXVIII.) (Pal. N. Y., Vol. v., Pt. IL, p. 422, Pis. LXIL, CVIL, CVIII.) Distinguishing (haracters.â Large size; transverse and A'entro-dorsal diameter about as eleven to twelve: volutions embracino- to one-third the diameter of the inner conti<iuous. 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 Buffalo Society of Natural Sciences. Buffalo, N. Y. : Buffalo Society of Natural Sciences
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