VERTEBRATE REMAINS, PORT KENNEDY BONE DEPOSIT. 249 



mm. 



Diameters, crown of canine at base si i o e 



{ transverse ; 12.5 



Inferior sectorial, anteroposterior diameter, 23 



'•' elevation of protoconid ; 12 



tv 4. f I anteroposterior (restored) ; 20 



Diameters ol pm T ■{ , 1 . -, A 



1 x | transverse ; 10 



Depth of ramus at m T ; 38 



| longitudinal ; 15 



Diameters of incisor < anteroposterior; 10 



( transverse ; 8 



Length of third left metacarpal ; 78 



tv , n n r. , (anteroposterior; 14 



Diameters of proximal lacet < , l -, n 



1 | transverse ; 10 



Diameters of distal end of shaft at shoulders < l' L -. ' c 



(transverse; lb. 5 



Transverse width of proximal extremity of mc. 3, with diaclast at 



front of facet; 16.5 



Transverse width of proximal extremity of mc. 3, without diaclast at 



front of facet ; 8 



Proximal width mc. 4 (total) ; 15.5 



" " " without diaclast ; 12 



" " " facet only ; at middle ; 7 



Length mc. 4 ; 60 



Width " at distal shoulders in front; 16 



Length of phalange of first series ; 40 



Proximal transverse diameter of first series; 16 



Length of phalange of second series ; 28 



Proximal transverse diameter of second series ; 1 3 



Distal " " " " 11 



Diameters, humerus at proximal j transverse; 35 



end of entepicondylar foramen ( anteroposterior; 18.5 



tv i rr i r- ( anteroposterior ; 24 



Diameters, humerus, oo mm. above lorainen < , l nn 



I transverse ; 21 



Diameters, shaft humerus 2, J anteroposterior; 22 



75 mm. from middle of condyle ( transverse ; 20 



Distal width over all ; 52 



f transverse; 36 



Diameters of condyle < anteroposterior (external) ; 25 



( u (internal) ; 25 



Width of ectepicondylar bridge ; 9 



A plistocene Uncia was described by Dr. Leidy under the name of U. atrox. 

 The specimen is a left mandibular ramus with all the teeth. As compared with 

 U. inexpectata, U- atrox is considerably larger, the sectorial tooth about equalling 

 in size that of Smilodon gracilis. It further differs from U. inexpectata, in the 

 relatively greater size of the protoconid as compared with the paraconid. The pm T 



is more like that of U. inexpectata, but has a distinct cutting edge of the heel, 

 which is absent in the latter. U. atrox is as large as the lion. 



Uncia inexpectata is as large as the jaguar, and is the only representative of 

 its genus so far discovered in the Port Kennedy deposit. 



32 JOURN. A. N. S. PHILA.. VOL. XI. 



