232 Mr. R. I. Pocock on a 
penultimate cheek-teeth (m.") * equalling the length of the 
cheek-teeth from the anterior edge of the canine to the poste- 
rior edge of the last tooth (m.”) ; a prominent angular process 
behind m.’? forming the outer border of a semicircular notch 
at the anterior end of the posterior palate, which is wide ; 
mesopterygoid fossa also wide, considerably wider than long. 
A. Lower side of skull of Bassaricyon beddardi, nat. size. 
B. Inferior view of right bulla of B. gabdi, from Chiriqui, 
C. Lateral view of left bulla of type of B. alleni. 
B and C are from rough unmeasured sketches. 
The pterygoids produced inferiorly, so that their spinous 
apex, in profile view, projects considerably below the process 
formed by the posterior margin of the glenoid. Bulle 
depressed behind towards the paroccipital process, most 
* Thomas speaks of m.°, as if the premolar-molar formula was 3—3 
instead of 4—2. 
