. Bulletin of the United States Fish Commission. Fisheries -- United States; Fish-culture -- United States. Fig. 105.—Pilotfish (Xaucrates ductor) probably followed a whale ship that arrived a few days previous. We need merely remark that this is the fish that so commonly attends sharks in tropic seas, either picking up a living from the scraps left by the latter, or feeding on the parasites with which their protectors are infested, and which so often follows sailing vessels. 86. Rudderfish (Seriola zonata Mitchill) Pilotfish; Shark pilot Jordan and Evermann, 1896-1900, p. 902. Description.—Th
. Bulletin of the United States Fish Commission. Fisheries -- United States; Fish-culture -- United States. Fig. 105.—Pilotfish (Xaucrates ductor) probably followed a whale ship that arrived a few days previous. We need merely remark that this is the fish that so commonly attends sharks in tropic seas, either picking up a living from the scraps left by the latter, or feeding on the parasites with which their protectors are infested, and which so often follows sailing vessels. 86. Rudderfish (Seriola zonata Mitchill) Pilotfish; Shark pilot Jordan and Evermann, 1896-1900, p. 902. Description.—The rudderfish much resembles the pilot, but it is relatively deeper bodied (total length three and one-eighth times the depth), so much com- pressed that it is almost as thin as a butterfish (p. 245), and with more pointed nose. The chief distinction, however, is that its first (spinous) dorsal is well de- veloped, and with 7 instead of only 4 spines. Furthermore, there are 37 to 38 instead of only 26 to 27 rays in the second dorsal fin and the ventrals are relatively. 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 United States Fish Commission. Washington, The Commission, Govt. Print. Off
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