1893.] 



CETACEAN GENUS MESOPLODON. 



221 



rig. 1. 



^.oc. 



Upper surface (one fourth tbe natural size) of the cranium of a rery young 

 specimen (A in the list, p. 216) of Mesoplodon grayi, Haast. 



Sections of this rostrum at a and h are represented on Plate XIV. figs. 2 a, 2 b 



respectively. 



mxf. and pmxf., the maxillary and premaxillary foramina; ffib., gibbosity 

 of the premaxillaries ; s.oc, supraoccipital ; mafl., maxillary flange ; 

 meth., mesethmoid ; m.v., maxillary bone. 



