. Bulletin - United States National Museum. Science. 340 BULLETIN 56, I'NITED STATES NATIONAL MUSEUM. Seasonal changes. There are l\\ seasonal pelages, winter and summer, the hitter worn only for a few weeks. The winter overhair fulls out at the beginning of hot weather, leaving the animal clad in its winter underfur, which soon becomes brittle and worn, exposing the dark color at base, when the animal looks ragged and patchy, often appearing to he blackish when seen at a distance. The summer. Fig. 56. -Cynomys (Cat. No. 36362, ) a, Dorsal view; b, Ventral vi
. Bulletin - United States National Museum. Science. 340 BULLETIN 56, I'NITED STATES NATIONAL MUSEUM. Seasonal changes. There are l\\ seasonal pelages, winter and summer, the hitter worn only for a few weeks. The winter overhair fulls out at the beginning of hot weather, leaving the animal clad in its winter underfur, which soon becomes brittle and worn, exposing the dark color at base, when the animal looks ragged and patchy, often appearing to he blackish when seen at a distance. The summer. Fig. 56. -Cynomys (Cat. No. 36362, ) a, Dorsal view; b, Ventral view; e, Lateral view. pelage is first acquired on the forefeet and head, extends slowly hack- ward over the shoulders, but rapidly over the ventral surface and inner sides of the hind limbs, then to their outer surface, and lastly to the rump and tail. The underfur disappears at the advenl of the coarse summer coat, in which it is wanting. The change from winter to summer dress is a slow one. that from summer to winter much. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
Size: 1517px × 1648px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
