. L'histoire naturelle. Zoologie. MILLEPEDES ET D'INSECTES. SSI trouvés en Afrique du Sud, et dans diverses parties de l'^ Antilles et d'Amérique du Sud, ainsi qu'en Australie et en Nouvelle-Zélande. Peripatus inliformis (Guilding), de l'île de Saint Vincent, est d'environ deux pouces de long. (Voir Fig. 24). Jusqu'à'. !. Finance a.-Peripatus iulifonms (Guilde.). V.-Classe Insecta. Les insectes sont de loin les plus nombreux classe d'animaux qui peuplent la planète à l'heure actuelle. Le nombre réel d'espèces sur nos listes ne peuvent pas être beaucoup moins de 300 000 ; et des milliers de nouvelles espèces sont décrites chaque année. Dans ce comptage

• Contributeur: The Book Worm / Alamy Banque D'Images
• ID de l’image: RDX7YX
• Taille du fichier: 7,1 MB (280,2 KB Téléchargement compressé)
• Autorisations: Modèle - non | Propriété - non
• Dimensions: 2161 x 1156 px | 36,6 x 19,6 cm | 14,4 x 7,7 inches | 150dpi

Informations supplémentaires

Cette image appartient au domaine public, ce qui signifie que le droit d’auteur a expiré ou que le titulaire du droit d’auteur a renoncé à ses droits. Les frais facturés par Alamy couvrent l’accès à la copie haute résolution de l’image.

Cette image peut avoir des imperfections car il s’agit d’une image historique ou de reportage.

. Natural history. Zoology. MILLEPEDES AND INSECTS. SSI found in South Africa, and in various parts of tlie West Indies and South America, as well as in Australia and New Zealand. Peripatus inliformis (Guilding), from the Island of St. Vincent, is about two inches long. (See Fig. 24). Till'.!. Fin. a.—Peripatus iulifonms (Guild.). CLASS V.—INSECTA. Insects are by far the most numerous class of animals which inhabit the globe at the present time. The actual number of species on our lists cannot be much less than 300, 000 ; and many thousands of new species are described every year. In this country alone we have between 12, 000 and 13, 000 species, although our fauna is exceedingly poor, not only as compared with that of tropical countries, but even in comparison to that of Con- tinental Europe. Only a few families and orders of insects Number of are at all adequately known at present, and those only as Species existing in the best-explored countries. The late Professor of Insects. Riley estimated the probable number of existing species of insects at possibly ten millions ; and such estimates are generally far below the mark. The alternative estimate of two millions, which is put forward by some entomologists, seems to me to be ridiculously low, when we consider that the world has been so badly explored that we are not yet acquainted with a dozen species of Phasmidce, or stick-insects, from Madagascar, an island which has been visited by many collectors, while the Phasmkhi' are not a group of small and obscure insects, but one which includes many very handsome and conspicuous species, and to which belong the largest of all known insects. To take another illustration, Mr. E. Ernest Green is now working at a monograph of the Coccichr, or scale-insects, of Ceylon. Very few species were previously known from that island, and he will probably be easily able to multiply them at least by ten. Nevertheless, insects, like the plants on which they feed, are becoming. Please no

Recherche dans la banque de photos par tags

• bookauthorly
• bookcentury1800
• bookdecade1890
• booksubjectzoology