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Tokudaia is a genus of murine rodent native to Japan. [1] Known as Ryūkyū spiny rats or spinous country-rats , population groups exist on several non-contiguous islands. [ 2 ] Despite differences in name and appearance, they are the closest living relatives of the Eurasian field mouse ( Apodemus ).
Muennink's spiny rat or Okinawa spiny rat (Tokudaia muenninki, Japanese: オキナワトゲネズミ, romanized: Okinawa togenezumi or 沖縄棘鼠) is a species of rodent in the family Muridae. [2] Endemic to Okinawa Island, Japan, its natural habitat is subtropical moist broadleaf forest. The karyotype has 2n = 44. [2]
This is a list of mammal species recorded in Japan (excluding domesticated and captive populations). Of the 172 [1] species of mammal found—112 native terrestrial mammals (those that are endemic are identified below; this number includes 37 species of bat), 19 introduced species, 40 species of Cetacea, and the dugong—161 are listed for the Japan region on the IUCN Red List of Threatened ...
This is a list of the largest rodents. Rank Common name Scientific name Status Maximum body mass [kg (lb)] Image Notes 1: Giant pacarana: Josephoartigasia monesi:
As of 2021, the American Society of Mammalogists has recognized 2,277 different species of rodents, making up 35% to 40% of all mammal species on the planet, depending on which authority you talk to.
Toggle Animals in Japan subsection. 1.1 Mammals. ... Large Japanese field mouse; ... four different species of venomous snake that exist in certain islands including ...
The species appears to be present on all Japanese islands. It inhabits forests, grasslands, and cultivated fields, including rice paddies, at any altitude. [1] Though occupying the same broad ecological niche as A. argenteus, the two species prefer different microhabitats: A. argenteus prefers dense canopy, while A. speciosus prefers open secondary forests.
The Ryukyu spiny rat (Tokudaia osimensis) is a species of rodent in the family Muridae. [2] Endemic to Amami Ōshima island in the Amami Islands of the Ryukyu archipelago of Japan, its natural habitat is subtropical moist broadleaf forest. The karyotype has an odd diploid number, 2n = 25. [2]