BY ROBERT HALL. 32 1 



doubtful importance when such forms as Myzantha, 

 Aidemosvne, Cinclosoma, and Pterypodocys are con- 

 sidered. 'Table II. shows area 2 to have 95 genera and 

 area 3 to have 90 genera; while Table III. shows area 2 

 to have 172 genera and area 3 to have 173 genera. 



The following table shows the genera of area 3 not 

 found in area 2:— 



GENERA IX AREA 3 XOT KXOWX IX 

 AREA 2 (i). 



(22 Genera=i2>^ Per Cent, of the 173 Genera.) 



Hylacola 3- 4, 6, 7, 9 



Sericulus • • 3' 4 



Ptervpodocvs 3' ^- 7? 9 



Stipiturus .' 3, 4, 5, 6, 8, 9 



Sphenura 3. 4, O' 9 



Origma 3-4 



Chthonicola 3' 4- o 



Cinclosoma 3 4, 5, 6, 7, 8, 9 



Gymnorhina 3, 4, 5, 6, 7, (8), 9 



Acanthorhvnchus 3> 4> .5^ ^ 



^Ivzantha ' i, 3' 4, 5' 6, 7, 8, 9 



Annelobia 3^ 40' 6, 9 



Staganopleura 3' 4. o. 7 



Zonaeginthus 3' 4' 5- 6, 7. 9 



Aidemosyne Z^ 7 



/Vtrichornis 3* (4)' 9 



Menura 3' 4 



Callocephalon 3- 4' 5 



Xeophema 3' 4' 5' 6, 7' 9 



Euphema 3^ 4, 5- 6, 7 



Pezoporus 3- 4, 5- 6, 9 



There are in area 3 certain genera absent in 2 while 

 pre<^ent in area 4. It is these southern and central genera 

 coming into 3 from areas 4 and 7 that make the genera 

 of area 3 numericallv greater than that ot area 2. But 

 it is onlv to increase the number of genera, and not dis- 

 turb the northern origin. Certain of the genera (2) m- 



Not having a nordiern distribution (8, i. 2), with ex- 

 ceptions. 



(2) Atrichia, Meliornis, Aeluroedus, Piezorhynchus, and 

 Eopsaltria. 



