. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Figure 25. Interrelationships within the four main evolutionary paths in the genus Atlapetes. The relative lengths of the lines and their angles are of no significance. See text (p. 366) for details. shoot of the main branch, and A. citrinellm is presumed to be a derivative of this off- shoot. The fourth line of descent is the A. schistaceus species-group. A. rufigenis seems to have been an early offshoot, or it ^ may merely be distinctive because of its distance from the center of the species' distribution. A. albice
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Figure 25. Interrelationships within the four main evolutionary paths in the genus Atlapetes. The relative lengths of the lines and their angles are of no significance. See text (p. 366) for details. shoot of the main branch, and A. citrinellm is presumed to be a derivative of this off- shoot. The fourth line of descent is the A. schistaceus species-group. A. rufigenis seems to have been an early offshoot, or it ^ may merely be distinctive because of its distance from the center of the species' distribution. A. albiceps and nationi, while sharing a common origin from the main branch, are too distinct to be considered allospecies. A. schistaceus seems to repre- sent the main line of e\'olution for this unit. A. pallidiceps and A. leucopteriis are another pair of species that come off a com- mon point but also are too dixergent to be treated as members of a superspecies. Of particular interest are the A. rufinucha species-group and A. schistaceus species-. 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
Size: 1600px × 1562px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
