DESCRIPTION OF SPECIES EXAMINED 1:^7 



low development of papillary ridges and papillae of corium are 

 associated, as in the hand of the Brush-tailed Wallaby, Figs. 

 71, 72 and the heel, Fig. 70 ; Xerus capensis, Fig. 81 ; Hystrix 

 cristatus, Fig. 85 ; Ardomijs marmotta, Fig. 82 ; Myopotamus 

 coypu, Fig. 84 ; Arctigolidia trivergata, Figs. 93, 94 ; Viverra 

 civetta, Fig. 95 ; Herpestes griseus, Figs. 96, 97 ; Otaria 

 pusilla, Figs. Ill, 112; Talpa europceus, Fig. IV^ ; Erinaceus 

 europceus, Figs. 114, 115. 



(3) Illustrations of the greatest perfection of the papillary 

 ridges are Didelphys azarce, Figs. 55, 54 ; the LemuridcB, Figs. 

 117 to 129; Papio, 135 to 139; Macacus inuus, Fig. 142; 

 Cercopithecus callitrichus. Figs. 146 to 149 ; Hylobatidce, 150 

 to 153 ; Simia satyrus, Fig. 155 ; Anthropithecus troglodytes, 

 Fig. 158 ; Man, Figs. 164, 161, 162, 165. Imbrication is shown 

 in most of the Primates above the Lemuridce. 



(4) The papillae of the corium are seen in the greatest perfec- 

 tion in most of the groups under Rule 3, and the particular 

 cases do not need to be repeated her^^ The following ex- 

 ceptions may be mentioned, viz., Cercopithecus callitrichus, 

 Figs. 146 and 149, 158, 143, 138, 133, 134, where the papilla 

 of the corium are relatively ill-developed, and exceptions in 

 which the papillae are better developed than the ridges or 

 their equivalents are, Figs. 114, 115, 116, 107, 108, 109, 110, 105. 

 All the Birds examined show papillae of the corium strongly 

 marked. 



