. Elements of zoölogy : a textbook. Zoology. sm, Torpedo. 5, brain; eo, eye and optic nerve; el, electric organs; sw, spinal nerves; sm, spinal marrow; pg, pneumogastric nerves going to the electric organs; pg', branch ot the preceding; 5-,' gills. FIG. Saw-fish, Pristis antiquorum, Lath. from all other fishes—a long, flat snout, armed oil each side with pointed spines which are implanted like 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 perfect


. Elements of zoölogy : a textbook. Zoology. sm, Torpedo. 5, brain; eo, eye and optic nerve; el, electric organs; sw, spinal nerves; sm, spinal marrow; pg, pneumogastric nerves going to the electric organs; pg', branch ot the preceding; 5-,' gills. FIG. Saw-fish, Pristis antiquorum, Lath. from all other fishes—a long, flat snout, armed oil each side with pointed spines which are implanted like 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 Tenney, Sanborn, 1827-1877. New York : Scribner


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Keywords: ., bookauthortenn, bookpublishernewyorkscribner, booksubjectzoology