DESCRIPTION OF SPECIES EXAMINED 105 



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Fig. 106. — Common^Otter. Ltitra vulgaris. x 30. Manus, D. 2. Tip of 

 terminal phalanx tkrough rudimentary papillary ridges, which disappear 

 on the proximal (left) side ofjsection, longitudinal. 



Cercoleptes caudivolvulus (Fig. 105). — Terminal and middle 

 phalanges of the fifth digit of the hind foot ; longitudinal section 

 showing rudimentary papillary ridges on right of section, with a 

 distal imbrication, and well-defined, blunt-pointed papillae of 

 the corium also imbricated in a distal direction. 



Lutra vulgaris (Fig. 106). — Longitudinal section through 

 terminal phalanx of a digit of the forefoot. On the right is the 

 tip of the phalanx and here the epidermis shows rudimentary 

 papillary ridges, imbrication distal, and beneath each of these 

 ridges a very long-pointed papilla extending nearly to the free 

 surface of the epidermis. To the left or proximal end of the 



