. The Canadian naturalist and geologist. Natural history -- Periodicals. 274 Dawson on the footprints ofLimulus, female of the American Limulus would give a track fully nine inches in width, and much stronger in the principal impressions, while in such a large track the minor impressions of the anterior feet would also be more distinct. When the Limulus creeps on quicksand, or on sand just covered with water, so that its body is partly water-borne, it appears principally to use its ordinary walking feet, and the footprints then resolve themselves into a series of longitudinal scratches after t


. The Canadian naturalist and geologist. Natural history -- Periodicals. 274 Dawson on the footprints ofLimulus, female of the American Limulus would give a track fully nine inches in width, and much stronger in the principal impressions, while in such a large track the minor impressions of the anterior feet would also be more distinct. When the Limulus creeps on quicksand, or on sand just covered with water, so that its body is partly water-borne, it appears principally to use its ordinary walking feet, and the footprints then resolve themselves into a series of longitudinal scratches after the manner of Protichnites lineatus, while the lateral and median grooves retain their distinctness, the former being appa- rently even of greater proportionate depth than on firm sand. This kind of impression is represented in Fig. 2. I^ffff.^. « ^11^^^ â. 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 Natural History Society of Montreal. Montreal, Dawson


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