Cardisoma carnifex Japanese Name: ミナミオカガニChinese Name: 凶狠圓軸蟹English Name: Brown Land CrabOrigin: Coastal regions of Southeast Asia bordering the Pacific and Indian Oceans; in Japan, found on islands south of Yoronjima in the Ryukyu Islands. The Brown Land Crab is one of the terrestrial crabs found in the Ryukyu Islands. In recent years, its population has… Continue reading Brown Land Crab
Author: YambaruWanyu
Otton Frog
Babina subaspera Japanese Name: オットンガエルChinese Name: 隆背拇棘蛙、奧頓蛙English Name: Otton FrogOrigin: Amami Oshima, Kakeromajima The Japanese name “Otton” comes from the Amami dialect, meaning “gigantic.” Male Otton Frogs can grow up to 12 cm in length, making them the largest native frog species in Japan. This species is closely related to Babina holsti, the Holst’s Frog,… Continue reading Otton Frog
Amami Whipscorpion
Typopeltis stimpsonii Japanese Name: アマミサソリモドキChinese Name: 奄美鞭蠍English Name: Amami WhipscorpionOrigin: Izena Island, Tokunoshima, Amami Oshima, Tokara Islands, Osumi Islands (Kuchinoerabujima, Iojima, Takeshima), Satsuma Peninsula, Kamikoshikijima This species is endemic to Japan. However, due to human introduction, it has established populations outside its natural range, such as in Ushibuka (Amakusa City) and Hachijojima, where it is… Continue reading Amami Whipscorpion
Taiwan Whipscorpion
Typopeltis crucifer Japanese Name: タイワンサソリモドキChinese Name: 台灣鞭蠍English Name: Taiwan WhipscorpionOrigin: Iheyajima, Okinawajima, Ishigakijima, Iriomotejima, Hatomajima, Kohamajima, Yonagunijima, Taiwan When threatened, the Whipscorpion releases an acidic gas containing acetic acid from the tip of its tail to drive away predators. This species is relatively common on Ishigakijima and Iriomotejima but rarely seen on Okinawajima. Males and… Continue reading Taiwan Whipscorpion
Minei Freshwater Crab
Geothelphusa minei Japanese Name: ミネイサワガニChinese Name: 嶺井澤蟹English Name: Minei Freshwater CrabOrigin: Ishigakijima, Iriomotejima The Minei Freshwater Crab is an endemic species found only on Ishigakijima and Iriomotejima. It is a small freshwater crab with a carapace length of about 2.5 cm. Its claws are slightly reddish-orange in color.
Goodyera hachijoensis
Goodyera hachijoensis var. matsumurana Japanese Name: カゴメランChinese Name: 銀線蓮、假金線蓮English Name: Goodyera hachijoensisOrigin: Izu Islands, Yakushima, Tokara Islands, Okinawa Islands, Amami Oshima, Yaeyama Islands, Taiwan Goodyera hachijoensis has also been recorded from Okinawajima, but the number of individuals is very low, making it an extremely rare plant. Due to frequent illegal collection, strong conservation efforts are… Continue reading Goodyera hachijoensis
Little Nipper Crab
Geograpsus grayi Japanese Name: カクレイワガニChinese Name: 格雷陸方蟹、葛氏陸方蟹English Name: Little Nipper CrabOrigin: Widely distributed from the western Pacific to the Indian Ocean and eastern coast of Africa Among the crabs in the family Grapsidae, the genus Geograpsus shows a relatively high degree of terrestrial adaptation. These land crabs store water in their body and extract oxygen… Continue reading Little Nipper Crab
Ryukyu Melolonthidae Scarab Beetles
Tricholontha papagena Japanese Name: ケブカコフキコガネChinese Name: 多毛粉吹金龜English Name: Ryukyu Melolonthidae Scarab BeetlesOrigin: Okinawajima, Tokunoshima, Amamioshima This species belongs to the genus Tricholontha in the scarab subfamily Melolonthinae. Males have large, comb-like (lamellate) antennae. The Japanese common name Kebuka (meaning “hairy”) refers to the dense short hairs on the elytra. There are two recognized subspecies: Larvae… Continue reading Ryukyu Melolonthidae Scarab Beetles
Hallowell’s tree frog
Species information Scientific name: Hyla hallowelliiJapanese name: ハロウエルアマガエルChinese name: 哈氏樹蟾、哈氏雨蛙English name: Hallowell’s tree frogOrigin: Okinawajima, Amami Islands Ecology and description The name Hallowell’s tree frog honors Edward Hallowell, a physician from Philadelphia and amateur naturalist who described many Japanese amphibians and reptiles in the 19th century. Males call and breed from March to June during… Continue reading Hallowell’s tree frog
Ryukyu Stream Cricket
Species information Scientific name: Vescelia pieli ryukyuensisJapanese name: リュウキュウサワマツムシChinese name: 琉球擬亮蟋、比爾擬亮蟋琉球亞種、皮爾氏亮蟋琉球亞種English name: Ryukyu stream cricketOrigin: Amamioshima, Tokunoshima, Okinawajima, Kumejima, Ishigakijima, Iriomotejima Ecology and description In streamside environments of Okinawajima and other islands, the clear and high-pitched calls of the Ryukyu stream cricket can often be heard. These sounds are courtship calls produced by males rubbing… Continue reading Ryukyu Stream Cricket