Jaw muscles of New World squirrels.

  title={Jaw muscles of New World squirrels.},
  author={Scott S. Hall Ball and Vladimı́r Roth},
  journal={Journal of morphology},
  volume={224 3},
The jaw, suprahyoid, and extrinsic tongue muscles are described for eight species of New World squirrels, spanning more than an order of magnitude in body mass. Anatomical differences are discussed in the light of body size, natural history, and phylogeny. The relative sizes of different muscles, their orientations, and the shapes and positions of their areas of attachment vary but show few trends in relation to body size. The anatomical differences are likewise not readily explained by the… CONTINUE READING