i!V II. H. SCOTT AND CLIVIO lO. LOKI). F.I..S. 3 



hold good. As to size, the specimen measures in total length, 

 between verticals, 134 mm., and seems to be intact. As usual- 

 ly obtains, the lower surface of the exposed area of the tusk 

 is deeply excavated by the lower tusk, a sharply drawn cross 

 line marking its point of contact with the second incisor 

 (whose whole crown is generally excavated to the outline of 

 the grinding surface of the mandibular tusk). 



GENERAL CONCLUSIONS. 



It would seem, therefore, that — as already suggested — • 

 the females of Nototheriuvi mitchelli wem fully armed and 

 carried effective nasal horns, albeit less powerful than those 

 of their mates. This conclusion is supported by the facts 

 deduced from the study of the less solidly built nasal plat- 

 forms, and weaker necks. That we are not here dealing 

 with an immature male seems fairly assured, since the bones 

 all suggest maturity, and the teeth have been well worn dur- 

 ing the life of the animal. No feasible method of osteo- 

 logical development seems capable of converting this, ap- 

 parently, matured nasal platform, of 160 mm. in width, into 

 one of 175 mm. or more, or of expanding the cervical verte- 

 brae to the size commensurate to the aggressive nature of 

 the male animal. As noted in our former communication 

 the specimens were recovered, and sent to us by Mr. K. M. 

 Harrisson, of Smithton, during a trip to King Island upan 

 survey work. 



LITERATURE REFERRED TO. 



1920 H. H. Scott and Clive Lord, Papers and Proceedings 

 of the Royal Society of Tasmania, 1920, pp. 24 

 SI, and 107. 



NASAL PLATFORM OF N. MITCHELLI, V 

 Showing vascular grooves and scars relating to nourish- 

 ment and repair of the horn. 



NOTE.— Not drawn to scale. 



B — Boss. F — Foramen. 



C— Groovp. P— Pit. 



