l8o ANATOMY OF CERTAIN MEGAPODES. 



lumbar with the dorsal tract. It seems possible that the 

 Megapodidae are capable of being divided into two 

 groups. The first of these have the oil gland tufted, and 

 are aquincubital. This group would probably be found to 

 include all the species belonging to the genus " Mega- 

 podius," but at any rate includes " M. eremita " and 

 " M. pritchardi." The second group would include those 

 genera with a nude oil gland and quincubital wing, 

 comprising the genera " Catheturus," " Lipoa," and 

 probably " Megacephalon," although we have no evi- 

 dence yet, in the case of this genus, as to the wing being 

 diastataxial or otherwise. 



