196 Wortman — Studies of Eocene Mammalia in the 



the remaining tendons of the inner hamstring. The distal end 

 is unknown. 



With the exception of some fragments of the middle portion 

 of the shaft, the fibula is not preserved. These fragments 

 indicate that it was comparatively little reduced, a character 

 which again takes it back towards a Marsupial stage of devel- 

 opment. 



The pes is represented by but a few inconsiderable fragments, 

 which do not, unfortunately, serve to give a very clear idea of 

 its organization. A distal extremity of a calcaneum corresponds 

 much more nearly with that of the Binturong than either 

 Herpestes, Crossarchus, Viverra, or Eupleres. The articular 

 surface for the cuboid is rather flat, the astragalar facet much 

 arched, and the sustentaculum, widely projecting, with a slightly 

 excavated facet. There was apparently no contact between the 

 fibula and calcaneum. The cuboid has about the same relative 

 height as is found in the viverrines in general ; but in corre- 

 spondence with the flat distal end of the calcaneum its proximal 

 surface is likewise considerably flattened. The navicular again 

 exhibits a very decided resemblance to that of the Binturong, 

 and differs sharply from the viverrine, herpestine, and eupler- 

 ine sections of the family. In the Binturong, the posterior 

 margin of the bone is divided by a deep notch or sulcus into 

 two sub-equal projections. In H~erj?estes, Crossarehus, and 

 Ettpleres, no such sulcus exists, and the postero-internal angle 

 is enlarged and elevated. In the fossil this sulcus is present, 

 but not so deep as in the Binturong, yet the arrangement is 

 essentially the same. No other part of the pes is known. The 

 principal measurements are as follows : 



Length of three posterior premolars and first 



two superior molars _.. 18* 



Length of superior sectorial . 5' 



Transverse diameter of superior sectorial 3*8 



Length of first and second molars (outside) 6*7 



Transverse diameter of first molar (anterior) ._ 5*8 

 Transverse diameter of first molar (posterior). 5*9 

 Transverse diameter of second molar (anterior) 5 -5 

 Transverse diameter of second molar (posterior) 4'5 

 Length of inferior dental series irom anterior 



border of canine 30*5 



Length of first lower molar 4*5 



Length of second lower molar 3-7 



Depth of jaw at anterior border of first molar. 8*2 

 Length ot centrum of third (?) lumbar vertebra 15* 



Length of centrum of last lumbar vertebra 15' 



Length of centrum of penultimate lumbar ver- 

 tebra _ 17* 



mm 



