Identification of Primate Hair - Library

1 I0 JOURNAL OF FORENSIC SCIENCES
Table 1. Primate maximum and minimum hair diameters, cross-sectional areas, and hair indices.
Mean Mean Mean
Primate Max Dia, ~m Min Dia, urn Mean um 2 Hair Index
Lemur 35.03 4- 5.91 23.94 4- 3.54 668.49 193.60 69.28 4- 10.52
SlowLoris 44.33-4- 8.61 29.33 :t: 7.30 1062.91 4- 504.17 65.90-4- 6.89
Angwantibo 42.67 -4- 3.27 29.33 4- 3.27 986.46 4- 160.49 68.84 -4- 7.08
Potto 35,33 9.00 25.33 4- 9.00 723.62 4- 278.91 73.78 4-4- 13.90
Galago 38.17 4-4- 10.81 25.17 4- 7.22 797.44 4- 432.42 68.84 4-4- 22.19
Prosimians 39,11 4-4- 7.52 26.62 4- 5.25 847.78 4-4- 313.92 69.33 4- 12.12
Marmoset 57.33 4-4- 8.33 42.67 4- 2.31 1914.28 Jr 233.50 75.83 4- 14.74
Pygmy Marmoset 32,00 4-4- 8.00 18.67 4- 2.31 477.52 4-4- 164.81 59.72 4- 8.67
Titi 68.00 4-4- 4.00 45.33 q- 12.22 2429.50 4-4- 729.00 66.61 4-4- 16.99
Owl Monkey 72.00 4-4- 6.93 48.00 4- 8.00 2739.48 -4- 674.85 66.45 4-4- 6.28
Uakari 88.00 4-4- 0.00 44.00 4- 0.00 3041.07 4- 0.00 50.00 4-4- 0.00
Capuchin 82.00 4-4- 12.33 54.00 4- 8.29 3535.35 4-4- 966.05 65.95 4-4- 5.23
Squirrel 57.67 4- 19.48 43.00 4- 13.11 2104.87 4- 1066.06 76.30 4- 14.61
Woolly 76.00 -4- 22.63 44.00 4- 16.97 2777.17 4- 1794.93 57.10 4-4- 5.33
Howler 129.33 4- 10.07 45.33 4- 2.31 4603.49 4- 395.46 35.20 4- 3.29
New World
Monkeys 73.57 4- 10.20 42.78 4- 7.28 2624.76 4- 667.30 61.45 4- 8.35
Macaque 77.79 4- 17.18 63.62 4- 17.83 4102.71 4- 2029.35 81.34 4- 9.85
Celebes Black
Macaque 81.00 4- 18.92 66.17 :t: 16.17 4423.90 4- 1989.86 81.83 4- 7.55
Baboon 103.38 4- 17.91 78.62 =t: 13.71 6511.33 4- 2067.68 76.63 -4- 9.88
Mandrill
Baboon 108.00 -4- 17.44 89.33 -4- 15.14 7715.77 -4- 2396.59 82.64 4- 0.64
Guenon 68.00 -4- 0,00 48.00 4- 0.00 2563.55 -4- 0.00 70.59 4- 0.00
Colobus 73.33 2.31 56.00 4- 4.00 3221.19 4- 152.01 76.51 4- 6.92
Lungur 102.00 -4- 2.83 68.00 4- 11.31 5434.97 -4- 755.29 66.85 4- 12.95
Old World
Monkeys 87.64 -4- 10.00 67.10 4- 11.17 4854.77 4- 1341.54 76.63 4- 6.92
Hylobatids
Gibbon 104.00 4- 12.00 78.67 4- 4.62 6450.75 4- 1101.00 76.03 4- 5.70
Orangutan 144.00 -[- 10.58 96.00 4- 10.58 10916.01 4- 1952.30 66.54 4- 2.55
Chimpanzee 122.96 -4- 21.81 96.44 4- 14.82 9526.73 4- 2957.18 79.02 4- 6.78
Gorilla 109.45 4- 21.11 86.55 -4- 19.78 7676.93 4- 3030.06 79.28 4- 10.56
Pongids 125.47 4- 17.83 93.00 15.06 9373.22 4- 2646.51 74.95 4- 6.63
Hominids(Man) 91.85 4- 2.48 64.65 -4- 1.72 4811.55 4-2262.90 71.65 1.19
flattened ellipse while an index of 100.0 represents a circle. The hair indices of man
generally fall between values of 50 and 98 [3], negroids having the flattest and mongoloids
the most circular hair. The nonhuman primates generally conform to this range. As has
been shown for man [4], the hair indices of nonhuman primates do not always accurately
describe cross-sectional shapes.
Cuticle Scale Counts
Scale counts, that is, the number of cuticle scales per unit of measure (40 urn), present
little variation in man. The range is 4.7 to 5.2 scales per 40 am. The mean average of
nonhuman primates (4.51 1.38) is indicative of their counts exceeding both ends of
the human range (Table 2). While one cannot differentiate between human and other
primate hair on a basis of scale count alone, it is a pattern with which individual specimens
of all primates are very consistent in this feature.