. Il popolare di storia naturale . Zoologia. '^io serpenti. poco essere distinto da loro. Un resoconto dettagliato di questo campione è dato m la mia " Ghmpses mto Petland", pubblicato dai sigg. Bell e Daldy. I giovani del Camaleonte sono prodotte a partire da ej;GS, che sono molto sferica, di colore bianco e coperto con un gessoso e molto poroso shell. Essi sono posti sul terreno sotto le foglie e vi a sinistra per berlina dal calore del sole e il calore prodotto dalla decomposizione di foglie. I due sessi possono essere distinti dagli altri per la forma della coda, che nel mal

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. The popular natural history . Zoology. '^io SNAKES. scarcely be distinguished from them. A detailed account of this specimen is given m my " Ghmpses mto Petland, " published by Messrs. Bell and Daldy. The young of the Chameleon are produced from ej;gs, which are very spherical, white in colour, and covered with a chalky and very porous shell. They are placed on the ground under leaves, and there left to hatch by the heat of the sun and the warmth produced by the decomposition of the leaves. The two sexes can be distinguished from each other by the shape of the tail, which in the male is thick and swollen at the base.. CHAMELEON.—(ChatneUo vulgaris.) The large and important order at which we now arrive consists of reptiles which are popularly known as Snakes, or more scientifically as Ophidia, and to which all the true Serpents are to be referred. The movements of the Serpent tribe are performed without the aid of limbs, and are, as a general rule, achieved by means of the ribs and the large curved scales that cover the lower surface. Each of these scales over- laps its successor, leaving a bold horny ridge whenever it is partially erected by the action of the muscles. The reader will easily see that a reptile so constructed can move with some rapidity by successively thrusting each scale a little forward, hitching the projecting edge on any rough substance, and drawing itself forward until it can repeat the process with the next scale. The movements are consequently very quiet and gliding, and the creature is able to pursue its way under circumstances of considerable difficulty. The tongue of the Snake is long, black, and deeply forked at its extremity, and when at rest is drawn into a sheath in the lower jaw. Li these days it is perhaps hardly necessary to state that the tongue is perfectly harmless, even in a poisonous serpent, and that the popular idea of the "sting"is entirely erroneous. The Snakes all seem to employ the tongue largely as

Parole chiave associate all'immagine

• bookcentury1800
• bookdecade1880
• booksubjectzoology
• bookyear1884