File:Half hours with fishes, reptiles, and birds (1906) (14772088373).jpg

Identifier: halfhourswithfis00hold (find matches)
Title: Half hours with fishes, reptiles, and birds
Year: 1906 (1900s)
Authors: Holder, Charles Frederick, 1851-1915
Subjects: Zoology
Publisher: New York, American Book Co
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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Fig. 52. — The Proteus. American salamander is the Amblystoma, many species ofwhich are known in America, nearly all of them inhabit-ing the western portion of the continent. They undergoa marvelous change, and the young or larval stage is sodifferent from the adult that the two were for a long timeconsidered separate and distinct animals. This is wellshown in the illustration (Fig. 53), the lower figure beingthe young, the upper the perfect form. In Mexico theanimal is called the Axolotl, and there, for a long time, the FROGS AND TOADS S7 imperfect form only was known. It lives in the water,breathing by external plumelike gills. Finally some onetook some Axolotls to Paris, when, to the amazement of thekeepers of the Jardin des Plantes, their gills disappeared,
Text Appearing After Image:
Fig. 53. —The Amblystoma and Young. and the animals came out of the water in the guise ofperfect Amblystomas. The secret was that the dry air ofMexico was not favorable to their perfect development,and the Axolotls therefore retained their larval form. FROGS AND TOADS Oom 0-0-m, comes the deep sound through the forest,the note of the bullfrog far away. Chirrup —chirrup comes from beneath the house, while down by the pool 88 FROGS AND TOADS among the willows the piping, whistling, and booming riseon the night air in a volume of sounds. The frogs aremerely talking, singing, or laughing. It is true that theyrepeat the same notes over and over, and these becomevery monotonous, but every stroller can remember thatwhen in the forest the pipe of a frog was a welcomesound. There is great variety in the notes of these talkers,singers, and whistlers. The tree toads are particularlynoted for their loud cries. One of the first sounds ofspring is the high and shrill piping of Pickerings Hyla,a

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