ITS NEAREST EXISTING RELATIONS. 49 



characters of which are only recognizable in the 

 skeleton. 



(A) With a great anterior prolongation of the 

 ossification of the nasal septum (mesethmoid), ex- 

 tending in the adult far beyond the nasal bones, and 

 supported and embraced at the base by ascending 

 plates from the maxilke. This section constitutes 

 the genus Elasmognathus of Gill. There are two 

 species, both from Central America. 



Tapirus bairdi (Baird's tapir) : Mexico, Honduras, 

 Nicaragua, Costa Rica, and Panama. 



Tapirus dowi (Dow's tapir) : Guatemala, Nicara- 

 gua, and Costa Rica. 



(B) With the ossification of the septum not ex- 

 tending farther forward than the nasal bones. Three 

 species : 



T. indicus (the Malay tapir) : Malay Peninsula 

 (as far north as Tavoy and Mergui) and the islands 

 of Sumatra and Borneo. T. americanus (T. ter- 

 restris, Linn.). The common South American tapir 

 of the forests and lowlands of Brazil and Para- 

 guay and the northern part of the Argentine Re- 

 public. 



T. roulini. The Pinchaque or Roulin's tapir of 

 the high regions of the Cordilleras of Colombia 

 and Ecuador, 7,000 to 8,000 feet above the sea 

 level. 



