. L'histoire naturelle. Zoologie. 438 AMPHIBIA ORDRE I.-ECAUDATA. dans l'eau. Un membre d'une espèce d'Amérique tropicale ce Phyllohates trinitiUis-famille à savoir, de Trinité-et-Venezuela est remarquable en raison de ses infirmiers liabits curieux. Les têtards sont fournis avec des disques de succion sur la bouche, par lequel elles se fixent à l'arrière de leur mère, et sont donc mis sur la sécurité. Autant que de douze à dix-huit têtards peuvent parfois être trouvés à ce s'accrochant à une grenouille. Un mode de fixation similaire se produit dans le cas d'une espèce du sous-genre mentionné, Dendrohates

• Contributeur: The Book Worm / Alamy Banque D'Images
• ID de l’image: RDX8BY
• Taille du fichier: 7,2 MB (262,8 KB Téléchargement compressé)
• Autorisations: Modèle - non | Propriété - non
• Dimensions: 1828 x 1368 px | 31 x 23,2 cm | 12,2 x 9,1 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. 438 AMPHIBIA—ORDER I.—ECAUDATA. in water. One member of a Tropical American genus of this family—namely Phyllohates trinitiUis, of Trinidad and Venezuela—is remarkable on account of its curious nursing liabits. The tadpoles are provided with sucking-discs on the mouth, by means of which they attach themselves to the back of their female parent, and are thus carried about in safety. As many as from twelve to eighteen tadpoles may sometimes be found thus clinging to one frog. A similar mode of attachment occurs in one species of the under-mentioned genus Dendrohates, but in this case this mode of locomotion seems to be resorted to only when the ponds in which the individuals have bred dry up. In addition to the members of the genus Bhacophorus, there are many other frogs which have taken to an arboreal life, and so much do these resemble one another in external appearance that it is pro- Family bable any non-scientific observer would regard aU of them Dendrobalidce. as being very closely allied. Not so that dreadful personage the anatomist, who tells us that while the members of one family conform in the structure of the bones of the chest to the sub-order now under consideration, all those of another family to be mentioned later have a totally different conformation of this region. Accepting this distmction, we must regard the Tropical American tree-frogs of the genus Dendrohates, and those belonging to the nearly allied Malagasy genus Mantella, as forming a family by themselves. From the frogs of the family Banida the Dendrobatidw are distinguished by the absence of teeth both in the upper jaw and on the bones of the palate. In both genera the toes are unwehbed, and terminate in small adhesive discs, but whereas in Mantella the tongue is notched at the tip, in Dendrohates it is entire. One species of the latter genus (D. tinctorius) is remarkable for the brilliancy and variabUity of its coloration; while it is further noticeable a

Recherche dans la banque de photos par tags

• bookauthorly
• bookcentury1800
• bookdecade1890
• booksubjectzoology