302 Reptilian Bird from the Trias of Massachusetts. 



Remarks. — This species differs from the T. caudatus — the 

 only one described — in the greater divarication or spread of 

 the toes ; its inferior size, being from one fourth to one half 

 smaller ; and thirdly, its mode of progression is irregular and it 

 does not trail its claws in the mud. The T. caudatus walks as 

 regularly as a turtle. The claws of the hind toes are very 

 large — almost pellets. The front feet of the two species appear 

 to correspond perfectly except in size. 



Locality. — Ferry above Turner's Falls, near Greenfield, Mass. 

 The specimen described is in the private cabinet of the Author. 



