CONCIUSIONS. 69 
Putorius vulgaris. 
Putorius ermineus. 
'  Putorius putorius. 
Putorius lutreolus. 
~  Lutra. 
 Pteronura Sanbachii. 
: Enhydra, lutris. 
: Inauriculata. 
| 'Trichecidae. 
 Auriculata. 
: Longicaudata. 
: Basilosanrus. Long-tailed ances- 
tors of Tenuia. 
Long-tailed ances- 
tors of Gressigrada. 
Long-tailed early 
forms of Pinnipedia. 
Propinnipedia, long- - 
tailed ancestors of 
Pinnipedia and Basi- 
losaurus. 
Long-tailed ances- 
tors of sea-otters. 
Long-tailed ances- 
tors of fin-tailed 
otters. 
Long-tailed ances- 
tors of otters. 
Long-tailed ances- 
tors of polecats and. 
minks. 
Long-tailed ances- 
tors of weasels and 
stoats. 
Long-tailed 
Viverrine 
ancestors. 
