. Elements of conchology / Prepared for the use of schools and colleges. Mollusks. Fig. 60.—HARPA. 59.—DOLIUM GALEA. 5. The Harps—Jfarpa—= have a more oval shell, furnished with projecting ribs parallel with the margin of the aperture, and differ from the preceding in the form of their foot {fig. 60). 6. The Purpura is fur- nished with an opercujum, like the Buccinum properly so Explanation of Fig. 60.—Harp :- —c. the tentacles;—d. the syphon. , the shell;—6. the foot of the animal; 3. What are the characters of the Buccinum properly so called ? 4. What are the characters of the genus Nassa ?

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. Elements of conchology / Prepared for the use of schools and colleges. Mollusks. Fig. 60.—HARPA. 59.—DOLIUM GALEA. 5. The Harps—Jfarpa—= have a more oval shell, furnished with projecting ribs parallel with the margin of the aperture, and differ from the preceding in the form of their foot {fig. 60). 6. The Purpura is fur- nished with an opercujum, like the Buccinum properly so Explanation of Fig. 60.—Harp :- —c. the tentacles;—d. the syphon. , the shell;—6. the foot of the animal; 3. What are the characters of the Buccinum properly so called ? 4. What are the characters of the genus Nassa ? (Nassa, Latin, a net). What are the charac'ers of Do'lium ? (Dolium, Latin, tub, a tun). 5. How is the Harp characterized ? 6. What are the characters of the genus Pc'pura ? (Purpura, Latin^ purple.) 6*. 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 Ruschenberger, W. S. W. (William Samuel Waithman), 1807-1895; Comté, Achille, 1802-1866; Milne-Edwards, H. (Henri), 1800-1885. Philadelphia : Grigg & Elliot

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Keywords: ., bookcentury1800, bookdecade1840, booksubjectmollusks, bookyear184