456 RICHARD S. LULL 



CONCLUSION 

 The general proportions of the skeleton would indicate a huge 

 animal, seven feet four inches in height to the withers, and something 

 over twelve feet in length, somewhat rhinoceros-like in aspect, but with 

 more massive, pillar-like limbs, which, as Professor Osborn has shown, 

 are correlated with great weight. The extreme flexibility of the carpus 

 seems to indicate an elephant-like habit of kneeling on the wrists 

 when rising and lying down. The creature was hardly adult, as 

 indicated by the unossified vertebral epiphyses, though probably of 

 full stature, and it indicated a form in the middle stage of evolution — 

 a noble example of a splendid, though unfortunate, race. It is the 

 author's privilege to dedicate this species to Professor John M. Tyler, 

 of Amherst College, a teacher of men, who, by his earnest efforts as 

 well as by his own generosity, was mainly instrumental in making 

 possible the expedition which secured the specimen. 



DESCRIPTION OF PLATES 

 PLATE III 



Fig. i. — Dorsal aspect of the skull of Megacerops tyleri. Drawn from the type 

 specimen. No. 327 of the Amherst College Zoological Collection. The missing por- 

 tion restored in outline. One-eighth natural size. 



Fig. 2. — Lateral aspect of the skull and jaw of Megacerops tyleri, drawn from the 

 type. One-eighth natural size. 



Fig. 3. — Anterior aspect of the horns and nasals of Megacerops tyleri, drawn from 

 the type. One-eighth natural size. 



Fig. 4. — Incisor, canine, premolar series of upper teeth of Megacerops tyleri, 

 drawn from the type. One-fourth natural size. 



PLATE IV 



Fig. 1. — Proximal aspect of the proximal row of carpals of Megacerops tyleri, 

 drawn from the type specimen, No. 327 of the Amherst College Zoological Collection. 

 One-fourth natural size. 



sc, scaphoid; lu., lunar; en., cuneiform. 



Fig. 2. — Proximal aspect of the distal row of carpals of Megacerops tyleri, drawn 

 from the type. One-fourth natural size. 



td., trapezoid (drawn from that of another specimen); mg., magnum; unc, unciform; sc. /., scaphoid 

 facet; lu. }., lunar facet; en. /., cuneiform facet. 



Fig. 3. — Right manus of Megacerops tyleri, drawn from the type specimen. Let- 

 tering as above. One-fourth natural size. 



f Fig. 4. — Right hind limb of Megacerops tyleri, drawn from the type. One-eighth 

 natural size. 

 cat., calcaneum; as., astragalus; eb., cuboid; na., navicular; en'., mesocuneiform; en*., ectocuneiform. 



