. Bulletin - New York State Museum. Science. Fig. 48 Fig. 49 Fig. 50 Fig. 48 Cyrtactinoceras champlainense sp. nov. Transverse section showing the circumsiphuncular organic deposit, the siphuncular deposit and the endosiphotube. X2}i Fig. 49 Cyrtactinoceras champlainense sp. nov. Longitudinal sec- tion showing the extent of the organic depositions in the cameras and siphuncle ; the endosiphotube in the lower part of the siphuncle and the lubuli in the upper. X3 Fig. 50 Cyrtactinoceras champlainense sp. nov. Transverse section of the living chamber of the specimen reproduced on plate 36, figure


. Bulletin - New York State Museum. Science. Fig. 48 Fig. 49 Fig. 50 Fig. 48 Cyrtactinoceras champlainense sp. nov. Transverse section showing the circumsiphuncular organic deposit, the siphuncular deposit and the endosiphotube. X2}i Fig. 49 Cyrtactinoceras champlainense sp. nov. Longitudinal sec- tion showing the extent of the organic depositions in the cameras and siphuncle ; the endosiphotube in the lower part of the siphuncle and the lubuli in the upper. X3 Fig. 50 Cyrtactinoceras champlainense sp. nov. Transverse section of the living chamber of the specimen reproduced on plate 36, figure i, 2. Natural size about 10 mm of the apical portion missing. The section is slightly depressed, the outer side being slightly flattened, and the dorsoventral diameter smaller by about one sixth than the transverse diameter. Cameras very shallow, there being 9 counted in 5 mm in the apical portion and the same number in 10 mm in the ephebic portion, filled more or less by organic deposits in the form of rings or heart-. 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; New York State Museum. Albany : New York State Education Dept


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectscience, bookyear1887