. The biology of the amphibia. Amphibians. Fig. 114.—Lateral-line organs. The distribution of the lateral-line organs is indicated by small depressions in the skin. A. Pleurodeles waltl (after Escher)- B. Triturus viridescens (after Kingsbury). C. Rana heckscheri tadpole. Branches: A., angular; D., dorsal; , infra-orbital; J., jugular; L., lateral; O., oral; V., ventral; , supra-orbital. living in adult life. Nevertheless, lateral-line organs are not present in all aquatic Amphibia, and here the immediate history of any one form may be of great significance. Thus they are not present i


. The biology of the amphibia. Amphibians. Fig. 114.—Lateral-line organs. The distribution of the lateral-line organs is indicated by small depressions in the skin. A. Pleurodeles waltl (after Escher)- B. Triturus viridescens (after Kingsbury). C. Rana heckscheri tadpole. Branches: A., angular; D., dorsal; , infra-orbital; J., jugular; L., lateral; O., oral; V., ventral; , supra-orbital. living in adult life. Nevertheless, lateral-line organs are not present in all aquatic Amphibia, and here the immediate history of any one form may be of great significance. Thus they are not present in the aquatic toads Pseudis or Calyptocephalus nor in the caecilian Typhlonectes (Escher, 1925). The latter, although thoroughly aquatic, probably had fossorial ancestors. They are found in the larvae of Salamandra atra which live their whole. 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 Noble, Gladwyn Kingsley, 1894-1940. New York : McGraw-Hill


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Keywords: ., bookcentury1900, bookpublishernewyorkmcgr, booksubjectamphibians