Transmitted 20 Degrees Off Crossed Linear Polarized Light
Definition/Function:
This hair belongs to the group Odocoileus. This group includes the varieties of North
American deer.
Significance in the Environment:
Characteristic Features:
Deer hair is about 100 to 300 micrometers wide from the root to near the tip. It has a
lattice type medulla that nearly fills the hair.
The cuticle pattern is imbricate flattened to broadly acuminate and has a scale count of
about 3 to 7 per 100 micrometers depending on the scale
pattern. The characteristic diamond pattern is 3 to 4 scales per 100 micrometers and the
flattened to vermiform scales are around 7.
Deer hair has a refractive index along its length of about 1.56 and perpendicular to its
length of about 1.55.
It has a birefringence of about 0.01 and a positive sign of elongation.
Associated Particles:
References:
References with Photographs and/or Drawings
Hausman, Leon Augustus, "Structural charactreistics of the hair of mammals", THE
AMERICAN NATURALIST, vol. 54, no. 635, pp.496-523,
Hausman, Leon Augustus, "Recent studies of hair structure relationships", THE SCIENTIFIC
MONTHLY, pp. 258-277,
Glaister, John, A STUDY OF HAIRS AND WOOLS, Misr Press, Cairo, 1931.
FBI site for Animal Hair Identification:
http://www.fbi.gov/hq/lab/fsc/backissu/july2004/research/2004_03_research02.htm
Keys Only
Mayer, William V., "The hair of California mammals with keys to the dorsal guard hairs
of California mammals", THE AMERICAN MIDLAND NATURALIST,
vol. 48, no. 2, pp. 480-512, 1952.
Stains, Howard J., "Field key to guard hair of middle western furbearers", JOURNAL OF
WILDLIFE MANAGEMENT, vol. 22, no.1, pp. 95-97, January, 1958.
Mathiak, Harold A., "A key to hairs of the mammals of southern Michigan", JOURNAL OF
WILDLIFE MANAGEMENT, vol. 2, no. 4, pp. 251-268, October, 1938.