. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. MRP Figure 12. Jaw muscles of: (A) Tyrannus; (B) Iridoprocne; (C and D) EremopMla; (E) Bombycilla; and (F) Heleodytes (redrawn from Engels, 1940).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum

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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology