. An introduction to zoology, with directions for practical work (invertebrates). Fig. 74.âThe Common Whelk (Buccinum undatum). (Nat. size.) also the mantle round the respiratory aperture is drawn out into a long, trough-shaped siphon, causing a distinct notch in the margin of the shell on the left side. The whelk feeds on decaying animal matter, but also on living "shell- fish," such as oysters or periwinkles, sucking out their soft bodies through a hole bored right through their Fig. 75. shells by its strong-toothed rasp, which is carried inside a protrusible snout. This rasp may b
. An introduction to zoology, with directions for practical work (invertebrates). Fig. 74.âThe Common Whelk (Buccinum undatum). (Nat. size.) also the mantle round the respiratory aperture is drawn out into a long, trough-shaped siphon, causing a distinct notch in the margin of the shell on the left side. The whelk feeds on decaying animal matter, but also on living "shell- fish," such as oysters or periwinkles, sucking out their soft bodies through a hole bored right through their Fig. 75. shells by its strong-toothed rasp, which is carried inside a protrusible snout. This rasp may be an inch long, and bears 220 to 250 sharply-pointed teeth (Fig. 75). The eggs of the whelk are well-known seaside objects, for they are very often thrown up on the beach by the â Two Rows of Teeth from the "Rasp" of a 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 Lulham, Rosalie Blanche Jermaine. London, Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherlondo, bookyear1913
