. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 342 M. ETHEL COCHRAN. on the tail an abundant poisonous fluid which did not prevent snakes from eating it. Easterly has written of the large granular glands of this salamander which are poisonous, but to what he does not state. Baird speaks of the genus Plethodon whose skin exudes a highly glutinous secretion, but he makes no statement of its nature. Gadow says: "Numerous experiments have shown that the poison of toads, salamanders and newts is capable when injected, of killing mammals, birds, reptiles and even fishes,
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 342 M. ETHEL COCHRAN. on the tail an abundant poisonous fluid which did not prevent snakes from eating it. Easterly has written of the large granular glands of this salamander which are poisonous, but to what he does not state. Baird speaks of the genus Plethodon whose skin exudes a highly glutinous secretion, but he makes no statement of its nature. Gadow says: "Numerous experiments have shown that the poison of toads, salamanders and newts is capable when injected, of killing mammals, birds, reptiles and even fishes, provided of course, the dose be proportionate to the size of the animal. Small birds and lizards succumb as a rule in a few minutes; guinea-pig, rabbits and dogs in less than an hour. This poison of amphibia is not septic, but acts upon the heart. Raised stone showing pair of red-backs with eggs. (About one half natural size.) (Photographed by Dr. Miller.) and central nervous system. Some authorities hold that the poison is an acid, others regard it as an ; The fluid from a red-back's tail is very sticky when placed in the mouth; after a short time, a slight biting sensation is felt for a few moments. Several of the salamanders taken from their native haunts had every mark of possessing a regenerating tail. In one case, the tail had been cut or broken off nearly to the hind legs and the bud of a new one had grown out about a quarter of an 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
Size: 1790px × 1397px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
