. The story of the amphibians and the reptiles. Amphibians; Reptiles. VIVIPAROUS AMPHIBIANS 39 eggs in crevices, has its young hatched perfect—active and leaping. The Mexican axolotl (Figs. 20 and 21) shows a peculiar form of suspended growth. If all the con-. FlG. 21.—^Azolotl (AmUyHotaa tigrinum), adult. ditions be not fair, it will cease to grow, and spend the rest of its life in the tadpole state, reproducing its young in this immature state while in the water, and these young are capable of either becoming land- haunters, by losing their giUs, or remaining always aquatic. It is probable t
. The story of the amphibians and the reptiles. Amphibians; Reptiles. VIVIPAROUS AMPHIBIANS 39 eggs in crevices, has its young hatched perfect—active and leaping. The Mexican axolotl (Figs. 20 and 21) shows a peculiar form of suspended growth. If all the con-. FlG. 21.—^Azolotl (AmUyHotaa tigrinum), adult. ditions be not fair, it will cease to grow, and spend the rest of its life in the tadpole state, reproducing its young in this immature state while in the water, and these young are capable of either becoming land- haunters, by losing their giUs, or remaining always aquatic. It is probable that other blunt-nosed sala- manders do the same, or they may make the change the second year and not the first. In the obstetric frog (Fig. 22), which wraps the string of eggs about his legs, the tadpoles are hatched in water, but they have no gills. There is a number of nest builders among the 5. 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 Baskett, James Newton, 1849-; Ditmars, Raymond Lee, 1876-1942. joint author. New York, D. Appleton and Company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectreptile, bookyear1902
