A frog of the family Ranidae in the order Anura in the class Amphibians. It is named after the zoologist Ishikawa Chiyomatsu. It is a large species that lives in the mountainous areas of Amami Oshima and the main island of Okinawa, with a body length of about 10 centimeters. Its back is green with large dark purple spots. The center of the spots is raised, and gold lines run radially from the center. The ventral surface is white with irregular dark spots scattered throughout. It has suckers on the tips of its fingers. It can be found on rocks in mountain streams and in trees. It spawns from February to May, when it lays large yellow-white eggs about 4 millimeters in diameter in pools of underground water near the water source. The larvae develop in stagnant areas of the current. [Mitsuru Kuramoto] © Tadaaki Ohkata "> Major species of frogs (Japanese species) [Specimen illustrations... Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
両生綱無尾目アカガエル科のカエル。動物学者の石川千代松にちなんで命名された。奄美大島(あまみおおしま)と沖縄本島の山地に生息する大形種で、体長は約10センチメートル。背面は緑色で暗紫色の大形斑紋(はんもん)がある。斑紋の中央部は隆起し、それを中心に放射状の金線が走る。腹面は白色で不規則な暗色斑が散在する。指端に吸盤がある。渓流の岩の上や樹上にみられる。産卵期は2~5月で、水源近くの伏流水のたまりに、径約4ミリメートルの黄白色をした大きな卵を産む。幼生は流れのよどんだ場所で発育する。 [倉本 満] ©大片忠明"> カエルのおもな種類(日本産種)〔標本画… 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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