. The Canadian field-naturalist. . Figure 1. Side view of enterolith recovered from a Moose, showing shape of shells. Figure 2. Cross-section of enterolith showing concentric deposits around molariform tooth. accretions consisting of ingested, compacted hair, and are documented for wild goats and chamois (Knaus and Schroder 1960; Wetzel and Rieck 1962). The enterolith has the shape of a flattened egg. Unfortunately, part of it was destroyed, allowing only an estimation of its total dimensions. The remaining intact part has a length of 42 mm, a width of 42 mm and a thickness of 28 mm (Figure 1)


. The Canadian field-naturalist. . Figure 1. Side view of enterolith recovered from a Moose, showing shape of shells. Figure 2. Cross-section of enterolith showing concentric deposits around molariform tooth. accretions consisting of ingested, compacted hair, and are documented for wild goats and chamois (Knaus and Schroder 1960; Wetzel and Rieck 1962). The enterolith has the shape of a flattened egg. Unfortunately, part of it was destroyed, allowing only an estimation of its total dimensions. The remaining intact part has a length of 42 mm, a width of 42 mm and a thickness of 28 mm (Figure 1). Assuming symmetrical growth, the total dimensions would have been 60 mm, 44 mm and 30 mm, respectively. The weight of the remaining part is 39 g, its volume 22 cm^ and its density or specific gravity g/cm^. Of interest is the fact that the enterolith consists of eight shells. The average shell thickness is about 1 mm, but the first shells deposited are thicker than the last outer ones. The shells have been deposited. 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 Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club


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