22 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 
Measurements. 
otal lene thse eos oe eee eine oc eee 37.00 em 
Width between the outer edge of maxillaries, poster- 
HOGY oo a5 - So as, a code Seema he maces wh ole iee ea ares 31.50 em 
Width between the outer edge of mavxillaries, anter- 
TKO) by ea eae tiene! al eres ean Ve bt he Cea N ana a te ot 27.60 em 
Vertical diameter of nasal canal posteriorly ...... 9.00 em 
Vertical diameter of nasal canal anteriorly ........ 4.80 cm 
Width between the inner ventral margins of maxil- 
RAPLC SRSA Un te se eg ee CR oh seer remeron 1.40 cm 
Width between the inner ventral margims poster- 
LON etre ain ane ge ee pee em cee mee eee .70 em 
Thickness of the nasal bone anteriorly ............ .50 em 
Thickness of the nasal bone posteriorly ............ 1.00 em 
Vierticalee diam etengese sn ences ee ee ee 8.50 em 
batenalsidiamereris cr. tenet een Cae ae eer nen 5.60 em 
Hateralicurvature im d6:00 7G = 2 5 ae ee .20 em 
Upwardxcurvatimeesimecks:O0vemres «55 ee eee .25 cm 
Bibliography—later. 
Plate I. 
Showing the ventral surface of the manxillaries and nasal 
bones, exposing the baleen surfaces and a large blood vessel 
path. 
Plate II. 
Fig. 1— View of the cross-section looking forward, revealing 
the relation of the maxillaries, premaxillaries and the nasal 
bones. 
Fig. 2-3——The longitudinal segment of the ramus showing 
the slight curvature and the cross-section showing the dental 
canal and blood vessel foramen. 
