A general term for animals belonging to the order Hyracidae and family Hyracidae of the class Mammalia. They are also called rock raccoons. They also make up a single family, and are also known as hyraxes. Members of this family, the Procaviidae, are primitive herbivorous ungulates with four digits on their forelimbs and three digits on their hind limbs, and flat claws. The radius and ulna, and the tibia and fibula are each separate, resembling the feet of an elephant. The dental formula is The taxonomy of hyraxes is largely uncertain, with some classified into two or three genera with 3 to 11 species. For example, the genus Procavia has five species, including the Syrian hyrax and the Cape hyrax, the genus Heterohyrax has three species, including the spotted rock hyrax, and the genus Dendrohyrax has three species. [Masaru Saito] Distributed in the Middle East and Africa. They live in groups in rocky areas and forests. Their classification is unclear, with 2 or 3 genera and 3 to 11 species. They are considered to be close to elephants in terms of taxonomy. Head and body length 30 to 60 cm, weight 2 to 6 kg . Hilux (Rock Badger) Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
哺乳(ほにゅう)綱ハイラックス目ハイラックス科に属する動物の総称。イワダヌキ(岩狸)ともいう。また、1科で目を構成し、ハイラックス類ともよばれる。この科Procaviidaeの仲間は、草食性の原始的な有蹄(ゆうてい)獣で、前肢に4指、後肢に3指があり、平づめをもつ。橈骨(とうこつ)と尺骨(しゃくこつ)、脛骨(けいこつ)と腓骨(ひこつ)がそれぞれ分離しており、ゾウの足に似ている。歯式は ハイラックスは分類的には不確定なところが多く、2属あるいは3属3~11種に分類される。ハイラックス属Procaviaにシリアハイラックス、ケープハイラックスなど5種、イワハイラックス属Heterohyraxにキボシイワハイラックスなど3種、キノボリハイラックス属Dendrohyraxに3種があるとする、などがその一例である。 [齋藤 勝] 中近東とアフリカに分布。岩地、森林にすみ、群れで生活する。分類的には不確定なところが多く、2属あるいは3属3~11種に分類され、分類学的にはゾウに近いものと考えられている。頭胴長30~60cm、体重2~6kg©Shogakukan"> ハイラックス(イワダヌキ) 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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