PATAGONIAN EXPEDITIONS: PALAEONTOLOGY. 



EXPLANATION OF PLATE XL. 



PAGE 



Fig. i. HAPALOPS RECTANGULARIS : Mandible, crown-view. Amer. Mus. 



Nat. Hist. (No. 9,222) . . . 206 

 Fig. la. " " Mandible, side (No. 9,222). 



Fig. 2. HAPALOPS ELONGATUS : Mandible, crown-view (No. 15,155) . . 221 

 Fig. za. " " " right side. 



Fig. 3. " " " crown-view (No. 15,597) 221 



Fig. 4. " " " left side (No. 15,531). . . 221 



Fig. 4#. " " " crown-view. 



All figures natural size. 



(VOL. v) 



