. The Conchologists' exchange. Mollusks. THE NAUTILUS. 19 noted measures 44 mm. in total length ; 38*5 mm. in the length of the haemal valve; 40 mm. in maximum width and 21*5 mm. in maximum diameter. It is waxen white with extraneous brown stains and has no anterior flexure. Davidson's figure of Tr. Crossei (Trans. Lin. Soc. IV, pi. 3, fig. 6) resembles it, but is more faintly sculptured and less transverse.— W. H. D. and H. A. P. Explanation of Plate I. Figs. 1, 2, 3. Terebratula Steamsii Dall & Pilsbry. ** 4, 5. Terebratulina var. Kiiensis Dall & Pilsbry. " 6, 7. unguicula Opr.,
. The Conchologists' exchange. Mollusks. THE NAUTILUS. 19 noted measures 44 mm. in total length ; 38*5 mm. in the length of the haemal valve; 40 mm. in maximum width and 21*5 mm. in maximum diameter. It is waxen white with extraneous brown stains and has no anterior flexure. Davidson's figure of Tr. Crossei (Trans. Lin. Soc. IV, pi. 3, fig. 6) resembles it, but is more faintly sculptured and less transverse.— W. H. D. and H. A. P. Explanation of Plate I. Figs. 1, 2, 3. Terebratula Steamsii Dall & Pilsbry. ** 4, 5. Terebratulina var. Kiiensis Dall & Pilsbry. " 6, 7. unguicula Opr., typical, a large specimen. ON THE YOUNG OF BACULITES COMPRESSUS SAY. BY AMOS P. BROWN, PHILADELPHIA. The young of Baculites compressus Say has been recently dis- covered by me in some cretaceous marl from the vicinity of Dead- wood, South Dakota. Associated with them in the same material were several species of Baculites, Scaphites and Inoceramus. The. young Baculites were of the form shown in figures 1 and 2 and varied in length from 1 to 3 cm., with a diameter of 0*4 to 2 mm. Other larger fragments with the spiral end broken off were found from. 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 Averell, William D. Philadelphia, Wm. D. Averell
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectmollusks, bookyear188
