. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 334 M. ETHEL COCHRAN. aware of their presence. This idea was strengthened by finding one of the two in an ant's nest, a thing not found before. Of several specimens kept in the laboratory, in vivaria, a few would venture out of their retreats on dark days. Rarely, if ever, are the salamanders found in treeless places, but they seem to have equal preference for pine, birch or mixed woods. All slopes, if shaded and of not too sandy a nature, seem to provide suitable The natural crevices beneath stones are utilized
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 334 M. ETHEL COCHRAN. aware of their presence. This idea was strengthened by finding one of the two in an ant's nest, a thing not found before. Of several specimens kept in the laboratory, in vivaria, a few would venture out of their retreats on dark days. Rarely, if ever, are the salamanders found in treeless places, but they seem to have equal preference for pine, birch or mixed woods. All slopes, if shaded and of not too sandy a nature, seem to provide suitable The natural crevices beneath stones are utilized by the red-backs. (Photo- graphed by Miss Gulick.) It seems that no holes are made by the salamanders themselves, but that they utilize whatever is at hand. Allen noted holes, but was not sure whether the salamanders made them or not. In a pile of stones or in a sawdust heap, there are many natural openings connecting in labrinthian fashion which are typical. In the vivaria kept in the laboratory, the pieces of moss were placed above a layer of sand and charcoal; a small dish of water was sunk to the level of the moss and the spaces between the pieces of moss, between the moss and sand, and between the "well" and sand were utilized by the red-backs as homes and highways. In one instance, where two specimens were found in rather soft earth, a well-defined hole was followed—it led by a short. 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
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