18 



PROCEEDINGS OF THE ACADEMY OF 



[1893. 



N. pennsyl- 

 vanica. 

 Coll. W. Stone 

 No. 157. No. 156 



Occipito-nasal length 53 



Basilar length (from foramen magnum to incisor). 44'9 



Zygomatic breadth 27 



Mastoid breadth 20 t> 



Interorbital constriction 7 



Length of nasals 20 



Foramen magnum to incisive foramen 31 



Foramen magnum to palate 206 



Length of upper molar series (on alveola 1 ) 9"8 



Length of incisive foramen 10 



Length of mandible (symphysis to angle) 30 - 5 



" " " (symphysis to condyle) 32 2 



Coronoid process from angle 153 



Ratios to Basilar Length. 



Zygomatic breadth 60 - l 



Mastoid breadth 45 - 9 



Nasals 445 



Upper molar series (on alveola;) 21 - 8 



Incisive foramen 222 



Foramen magnum to incisive foramen 69 



Foramen magnum to palate 458 



54 



27 

 20 

 6-6 

 21 



N. floridana. 

 Am. Mus. Nat. 



Hist. 

 No. 1127 No.1129 



50 - 

 40 

 25 

 19-2 

 73 



49-8 

 405 

 25-2 



19 

 61 

 185 



18-9 

 27 

 19-5 

 9 



10-5 

 275 

 29-6 

 12*2 



