Beginners' zoology . ed around the class after placingit in a tumbler with gauze or net tied over top. It should be kept in abox with two inches of moist earth on the bottom. If no live insectsare obtainable for feeding a toad, bits of moist meat may be dangledfrom the end of a string. If tadpoles are placed in a pool or a tub in agarden, the toads hatched will soon make destructive garden insectsbecome a rarity. Does a frog or a salamander have the more primitiveform of body .<* Why do you think so .? Salamanders aresometimes called mud puppies. The absurd belief thatsalamanders are poison


Beginners' zoology . ed around the class after placingit in a tumbler with gauze or net tied over top. It should be kept in abox with two inches of moist earth on the bottom. If no live insectsare obtainable for feeding a toad, bits of moist meat may be dangledfrom the end of a string. If tadpoles are placed in a pool or a tub in agarden, the toads hatched will soon make destructive garden insectsbecome a rarity. Does a frog or a salamander have the more primitiveform of body .<* Why do you think so .? Salamanders aresometimes called mud puppies. The absurd belief thatsalamanders are poisonous is to be classed with the beliefthat toads cause warts. The belief among the ancientsthat salamanders ate fire arose perhaps from seeing themcoming away from fires that had been built over theirholes on river banks by travellers. Their moist skin pro-tected them until the fire became very hot. Describe the mud puppy shown in Fig. 262. Thepouched gopher, or rat (Fig. 371), is sometimes absurdlycalled a Fig. 262! — Bund Salamander {Proteus a»^ui?ius). y. \. Found in caves andunderground streams in Balkans. Gills externa), tail finlike, legs small. CHAPTER XII REPTILIA (REPTILES) This class is divided into four orders which have suchmarked differences of external form that there is no diffi-culty in distinguishing them. These orders are representedby Lizards, Snakes, Turtles, and Alligators. Of these, onlythe forms of lizards and alligators have similar propor-tions, but there is a marked difference in their size,lizards being, in general, the smallest, and alligators thelargest of the reptiles. Comparison of Lizards and Salamanders. —To make clearthe difference between reptiles and batrachians, it will bewell to compare the orders in the two classes which re-semble each other in size and shape; namely, lizards and


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Keywords: ., bookcentury1900, bookdecade1920, booksubjectzoology, bookyear1921