130 CHARLES MIDLO AND HAROLD CUMMINS 



indicating virtual suppression of patterns. Other values below 

 the average are recorded for Oedipomidas, 0.57 ; Callithrix, 

 0.65; Ateles, 0.70; Cebus, 0.52; Pongo, 0.44; Gorilla, 0.55; Pan, 

 0.50; Homo, 0.48. 



Sole. The pattern intensity of the distal hypothenar area 

 (H d ) averages 0.42. The lowest values occur in Tarsius, 0; 

 Lemur, 0.11; Hylobates, 0.04; Symphalangus, 0; Pongo, 0.08. 

 The intensities are consistently above the average in Lasio- 

 pyginae while the values in New World monkeys are variable, 

 lying both below and above the average. Great apes show 

 diversity: Pongo, 0.08; Gorilla, 0.49; Pan, 0.37. The value 

 in man is 0.46. 



The proximal hypothenar area (H p ) has the lowest average 

 value of all plantar areas, 0.20. The highest intensities are: 

 Saimiri, 0.43; Papio, 0.42; Cercocebus, 0.84; Symphalangus, 

 0.68. Minimum values are noted in Tarsius, 0; Nycticebus, 

 0.11; Oedipomidas, 0; Callithrix, 0.04; Alouatta, 0.11; Aotus, 

 ; Ateles, 0.05 ; Lagothrix, 0.08 ; Pithecus, 0.10 ; Erythrocebus, 

 0.03; Pygathrix, 0.14; Hylobates, 0.12; Pongo, 0.04; Homo, 

 0.08. The remaining genera present values approximating the 

 average. 



The thenar area (Th) has an average value of 0.42. Genera 

 having pattern intensities considerably above average are: 

 Galago, 0.70; Callithrix, 0.60; Saimiri, 0.52; Aotus, 0.60; 

 Pithecus, 0.63; Cercocebus, 0.64; Hylobates, 0.56; Sympha- 

 langus, 0.61 ; Pongo, 0.63 ; Gorilla, 0.56 ; Pan, 0.63. The lowest 

 values are in Tarsius, 0.22; Nycticebus, 0; Lemur, 0.14; 

 Oedipomidas, 0.11; Ateles, 0.26; Cebus, 0.24; Erythrocebus, 

 0.13; Homo, 0.10. The remaining genera approximate the 

 average: Alouatta, Lagothrix, Papio, Lasiopyga and 

 Pygathrix. 



With an average value of 0.57, the first inter digital area (1) 

 presents next to the highest value of any area in the sole. 

 In most of the non-human genera and in man the values lie 

 well above the average, while the especially low values occur 

 in Tarsius, ; Lemur, 0.17 ; Ateles, 0.05 ; Hylobates, ; Pongo, 

 0.10; Pan, 0.18. 



