Anat Rec 294:915–928, 2011. Reviewing the Morphology of the Jaw-Closing Musculature in Squirrels, Rats, and Guinea Pigs with Contrast-Enhanced MicroCt by Philip G. Cox and Nathan Jeffery. Article first published online: 28 APR 2011. DOI: 10.1002/ar.21381

The voxel resolutions of the contrast-enhanced scans varied from 0.0667 to 0.0802 mm, not from 0.033 to 0.04 mm as stated on p. 917. In consequence, the muscle masses given in Table 1 (p. 920) are incorrect—muscle masses for the squirrel and guinea pig should be multiplied by 8.06 and 8.00, respectively and those for the rat should be multiplied by 8.26 to obtain the correct information. In addition, the scale bars on the figures represent 10 mm not 5 mm. The percentage data, skull lengths and estimated body masses are all correct.