SCOTT : LITOPTERNA OF THE SANTA CRUZ BEDS. 



67 





No. 



No. 



No. 



No. 



No. 



No. 



No. 





16. 



17- 



14. 



13- 



27- 



15,732. 



15,4-36 



Tj, length . 





.012 



.012 



.011 





.011 





" width 





.006 



.0065 



.006 





.005 





P3, length . 





.014 



•013s 



.014 





•013s 



•013s 



" width 





.009 



.0105 



.0105 





.009 



.009 



P^, length . 







.014 



.013 





.013 



.014 



" width 







.0125 



.012 





.011 



.Oil 



Lower molar series 

















length 







•04s 







•043 



.044 



My, length . 







.013 







.0125 



.013 



" width . 







.012 







.011 



.011 



Mj, length . 







.0145 







.015 



.014 



" width . 







.012 







.012 





M3, length . 







.017 







.016 



.017 



" width . 







.011 







•Oil 





Mandible, depth 

















below pg- . 





.0215 



■023 







.0215 



.023 



Associated with the mandible, No. 15,436, is the somewhat incomplete 

 hind-foot shown in PI. XII, fig. i. It is remarkable for the relative short- 

 ness and heaviness of most of its elements and, had it been found alone, 

 would probably have been regarded as belonging to some species of 

 Licaphrium. With this specimen maybe compared another, No. 15,712, 

 which, unfortunately, was not found in association with teeth, and there- 

 fore cannot be definitely referred to any species. The radius of this second 

 individual, shown in PL XII, fig. 10, agrees in the dimensions of the distal 

 end with those of P. cavum (see p. 76) but the hind-foot is apparently too 

 large for reference to that species. 



Measurements. 



No. 



i5,43'^- 

 Calcaneum, length ........... -0645 



" width over sustentaculum ....... .024 



" " at end of tuber ........ .016 



" " " middle of tuber ....... .009 



Astragalus, length ........... .032 



" width of trochlea . . . . . . . . . .017 



" " " distal end 0165 



Tarsus, length in median line ......... .042 



width 028 



Ectocuneiform, length .008 



" width 016 



No. 

 15,712. 

 .069 

 .023 

 .015 

 .008 



