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| Keywords: Haeckel frogs with labels.jpg in German <gallery> Image Haeckel frogs text jpg </gallery> English translation Remarks made by the translator are in italics or square brackets<br/> Fig 1 The pouch frog of Venezuela is remarkable for its female's possession of a paired dorsal <nowiki>back</nowiki> pouch in which the eggs remain until the hatching of the tadpoles A narrow triangular gap at the rear of the back in the centre of the lightly coloured saddle patch leads to the pouch <br/> Fig 2 Mediterranean Tree Frog Stripeless Tree Frog<br/> The treefrog of North Africa and Southern Europe is little different from our native common green treefrog Hyla arborea and like the latter lives on trees and shrubs When crying <nowiki>calling</nowiki> the male pushes forward the vocal sac like a bubble <br /> Fig 3 The treefrog of Ecuador is characterised by the crude build of its thick fingers with very wide contact plates and the knobbly skin that like in toads is covered in glandular warts <br /> Fig 4 The climbing frog of Ecuador is among the slimmest and most supple forms of treefrogs; his extraordinarily thin and long limbs with zebralike dark stripes across enable it of the most dexterous climbing arts <br /> Fig 5 The flying frog of Borneo is remarkable above all other Batrachids for its extraordinarily widened foot webbings between the elongated toes If the flying frog spreads these webs while jumping from tree to tree he can use them as a parachute similar to the flying dragon Draconellus among the reptiles Plate 79 and the flying squirrels Pteromys among the rodents <br /> Fig 6 The military frog of Surinam is very peculiar in that the female carries its young on its back in military rank The little tadpoles numbering 12 to 20 attach to two diverging back ridges of the mother that run symmetrically either side of the dorsal central line by their oral suction plates The mobile rudder tails are turned outward on the left side as on the right <br /> Fig 7 The banded frog of Java has two parallel white bands on its back running lengthwise that contrast strongly against the dark red brown base colour The jumping treefrog is about to capture an insect with its protruded bicornuated tongue <br /> Fig 8 The tip frog from the Solomon Islands is assigned to the group of horn frogs that are distinguished by a pair of sharp horns on top of the triangular head; these are elongated coverings of the upper eye lids The bright colouration and patterning of this horn frog is most variable and often adapted to its environment <br /> Fig 9 The thickhead frog from East Africa Mozambique Sambesi deviates from all other frogs in the appearance of its very short and thick head Furthermore it cannot jump with its short and weak legs and moves its fat crude body only with difficulty The hind feet have large spade-like digging swellings that help it to rapidly dig itself into the soil It feeds on termites and in its subterranean habits is equal to the moles <br /> Fig 10 Northern Leopard Frog<br /> The piping frog of North America Right behind the eye one can see the large white entirely superficially positioned eardrum Kunstformen der Natur 1904 plate 68 Batrachia see http //caliban mpiz-koeln mpg de/haeckel/kunstformen/high/Tafel_068_300 html here http //caliban mpiz-koeln mpg de/haeckel/kunstformen/high/Tafel_068_text_1_200 html here and http //caliban mpiz-koeln mpg de/haeckel/kunstformen/high/Tafel_068_text_2_200 html here Ernst Haeckel 1904 public domain due to age <gallery>File Haeckel Batrachia jpg</gallery> Haeckel Batrachia L lineatus jpg Hylarana erythraea Haeckel png PD-old Kunstformen der Natur 1904 Neobatrachia Gastrotheca ovifera Hyla meridionalis Ecnomiohyla tuberculosa Gastrotheca guentheri Rhacophorus pardalis Leptodactylus lineatus Hylarana erythraea Ceratobatrachus guentheri Breviceps mossambicus Lithobates pipiens | ||||
