The Digitigrade Hand and Terrestrial Adaptation in Japanese Macaques (Morphology of the Japanese Macaque<特集>)

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概要

• 論文の詳細を見る

• Hand positions of Japanese macaques were observed during stable ground standing. It was revealed that Japanese macaques preferentially utilize the digitigrade hand position. This agrees with previous claims that terrestrial primates tend to be digitigrade (e.g., Napier and Napier, 1967). In the digitigrade hand position, the second to fifth metacarpophalangeal joints are hyperextended with the metacarpi kept vertical. The proximal articular surface of the basal phalange is excavated proximodorsally in Japanese macaques to allow the hyperextension of the metacarpophalangeal joint. This skeletal specialization was observed in the digitigrade baboon and the palmigrade colobus monkey also. However, it was not seen in New World monkeys, apes and human. This skeletal feature may suggest a retention of the semi-terrestrial origin of cercopithecids.

• 日本人類学会の論文

著者

• Nakatsukasa Masato

  Department Of Zoology Kyoto University

• HAYAMA SUGIO

  Department of Anatomy, Kansai Medical University

• CHATANI KAORU

  Laboratory of Physical Anthropology, Faculty of Science, Kyoto University

• NAKATSUKASA MASATO

  Department of Anatomy, Osaka Medical College

関連論文

• Distal humerus and ulna of Parapresbytis (Colobinae) from the Pliocene of Russia and Mongolia : phylogenetic and ecological implications based on elbow morphology
• Morphology of the Humerus and Femur in African Mangabeys and Guenons: Functional Adaptation and Implications for the Evolution of Positional Behavior
• The Hadza and the Iraqw in northern Tanzania: Dermatographical, Anthropological, Odontometrical and Osteological Approaches
• The Digitigrade Hand and Terrestrial Adaptation in Japanese Macaques (Morphology of the Japanese Macaque)
• Individual Variation in Myofiber Type Composition in the Triceps Surae and Flexor Digitorum Superficialis Muscles of Japanese Macaques (Morphology of the Japanese Macaque)
• Distal humerus and ulna of Parapresbytis (Colobinae) from the Pliocene of Russia and Mongolia: phylogenetic and ecological implications based on elbow morphology

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