An analysis of masticatory form and function in three mustelids (Martes Americana, Lutra canadensis, Enhydra lutris)
An analysis of masticatory form and function in three mustelids (Martes Americana, Lutra canadensis, Enhydra lutris)
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三种鼬科动物（美洲貂、加拿大水貂、EnHydra lutris）的咀嚼形式和功能分析
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发表时间：
1985
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通讯作者：
M. Riley
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作者：
M. Riley
本文分析了三种芥虫(Martes、Lutra、Enhya)的咀嚼器官。对牙列、颅骨形态、初级颌骨肌肉和颌骨力学进行了描述。这三个属之间最显著的差异是在牙列上，在所研究的物种中，面颊牙齿表现出极端的磨牙变化。头盖骨、颌骨肌肉和颌骨的力学结构更为保守。这些结果支持这样一种假设，即哺乳动物颌器组件的最大变异是由牙齿的形状造成的(Hiiemae，1978)。
An analysis of the masticatory apparatus of three mustelids ( Martes, Lutra, Enhydra ) is presented. Descriptions are provided for dentition, cranial morphology, primary jaw musculature, and jaw mechanics. The most striking differences noted among the three genera are in the dentition, with the cheek teeth showing extreme modification toward grinding in the species examined. The cranium, jaw muscles, and jaw mechanics are more conservative. These results lend support to the hypothesis that the greatest variation in the components of the mammalian jaw apparatus is contributed by the shape of the teeth (Hiiemae, 1978).