Caption: "FLYING FROG". From a drawing by the author. Drawn on wood by Keulemans.

Drawing of a Flying Frog from Alfred Russel Wallace's book The Malay Archipelago. The newer version is from Papua Web: The Malay Archipelago (The Indo-Malay Islands) archive copy at the Wayback Machine

See also: Image:Haeckel Batrachia.jpg, which uses this illustration and others of frogs.

One of the most curious and interesting reptiles which I met with in Borneo was a large tree-frog, which was brought me by one of the Chinese workmen. He assured me that he had seen it come down in a slanting direction from a high tree, as if it flew. On examining it, I found the toes very long and fully webbed to their very extremity, so that when expanded they offered a surface much larger than the body. The forelegs were also bordered by a membrane, and the body was capable of considerable inflation. The back and limbs were of a very deep shining green color, the under-surface and the inner toes yellow, while the webs were black, rayed with yellow. The body was about four inches long, while the webs of each hind foot, when fully expanded, covered a surface of four square inches, and the webs of all the feet together about twelve square inches. As the extremities of the toes have dilated discs for adhesion, showing the creature to be a true tree frog, it is difficult to imagine that this immense membrane of the toes can be for the purpose of swimming only, and the account of the Chinese man, that it flew down from the tree, becomes more credible. This is, I believe, the first instance known of a "flying frog," and it is very interesting to Darwinian as showing that the variability of the toes which have been already modified for purposes of swimming and adhesive climbing, have been taken advantage of to enable an allied species to pass through the air like the flying lizard. It would appear to be a new species of the genus Rhacophorus, which consists of several frogs of a much smaller size than this, and having the webs of the toes less developed. They jump from tree to tree and use their webbed feet to glide.

이 작품은 미국, 그리고 저작권 보호 기간이 저작자 사후 70년, 또는 그 이하인 모든 국가에서 퍼블릭 도메인입니다. 이 작품이 미국에서 퍼블릭 도메인인 이유를 나타내는 적절한 미국 퍼블릭 도메인 태그를 반드시 추가하여야 합니다.  일부 국가는 저작권을 사후 70년보다 더 길게 적용하고 있으므로 주의가 필요합니다. 멕시코는 100년, 자메이카는 95년, 콜롬비아는 80년, 과테말라와 사모아는 75년을 저작권 보호 기간으로 적용하고 있습니다. 일부 국가에서는 단기 보호 기간 조항 또한 시행하고 있지 않으므로, 해당 국가에서 이 작품은 퍼블릭 도메인이 아닐 수 있습니다. 온두라스는 일반적으로 75년의 저작권 보호 기간을 갖고 있지만, 단기 보호 기간 조항을 시행하고 있습니다. 또한 제2차 세계 대전 중 프랑스를 위해 전사한 프랑스인(추가 정보), 동부 전선(러시아에서는 대조국전쟁으로 일컫음)에서 복무한 러시아인, 그리고 사후에 복권된 소련의 억압 희생자들(추가 정보)의 저작물은 저작권 기간이 연장될 수 있습니다.

이 저작물은 모든 저작인접권을 포함한 저작권법하의 규제로부터 자유로운 것으로 확인되었습니다.

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