NO. 2 A MIOCENE LONG-BEAKED PORPOISE KELLOGG II 



Measurements of the skull (in mUllmetcrs) 



Total length, as preserved 370 



Transverse diameter of skull across preorbital angles of supraorbital pro- 

 cesses of f rontals 176 



Transverse diameter of skull across postero-external angles of supra- 

 orbital processes of frontals 204± 



Distance across skull between outer surfaces of zygomatic processes.... 2io± 



Distance across skull between outer margins of exoccipital bones i78-f- 



Distance between inner margin of left occipital condyle and outer margin 



of left exoccipital 72 



Distance between outer angles of paroccipital processes 167 



Distance between outer surfaces of descending processes of basioccipital. . . 98 



Distance between outer margins of occipital condyles 74 



Greatest or oblique-vertical diameter of left occipital condyle 44 



Maximum transverse diameter of left occipital condyle ^2) 



Transverse diameter of foramen magnum 35 



Vertical diameter of foramen magnum 24 



Distance from upper margin of foramen magnum to apex of supraoccipital 



shield 105-f 



Vertical distance from basioccipital to apex of supraoccipital shield.... 1164- 

 Distance from ventral face of hamular process of pterygoid to dorsal 



surface of nasal bone 156 



Greatest vertical depth of skull at level of anterior borders of narial 



passages 87 



Greatest vertical depth of rostrum at level of maxillary notches 57 



Greatest vertical depth of rostrum at broken extremity (165 mm. in 



front of maxillary notches) 35 



Preorbital angle of left supraorbital process to posterior face of left 



occipital condyle 215 



Greatest distance between outside margins of premaxillaries at level of 



narial passages 85 



Greatest breadth of left premaxillary at level of anterior border of narial 



passages 33-5 



Greatest breadth of left premaxillary at level of maxillary notch 21 



Breadth of rostrum at level of maxillary notches 108 



Greatest antero-posterior diameter of left supraorbital process of frontal . . 83 



Antero-posterior diameter of left nasal along suture 35 



Transverse diameter of left nasal, anteriorly 16.5 



Greatest length of left zygomatic process 90 



Width of braincase 10 mm. below squamosal-parietal suture in temporal 



fossae 122 



