Nos.2 & 3.] THE AUSTRAL AVIAN RECORD 35 



^systematist of no mean calibre. His classification shows 

 many anomalies, but mostly those accepted at the time 

 he was working. 



Billberg's table is arranged so that the eye can easily 

 grasp the details in the following manner : — • 



Subclass. Order. Tribe. 



/ Trechopodce 



\ ( Apsirhamphce. 



J ElazopodoB ... ... \ Conorhamphce. 



■Geormthes \ [ Ancylorhamphce. 



{GyrorhamphcB. 

 PogonorhamphcBi 

 Madorhamphce. 



The Order Trechopodce is not divided into tribes, and 

 only into two families, Struthionides and Otidides. 



The tribe Apsirhamphce, covers four families, Tetra- 

 onides, Didides, Numidceides, and Gallides. 



The tribe Conorhamphce, on account of its extent, 

 is again subdivided into three " Legiones," and one 

 of the " Legiones " into four cohorts. The first Legio, 

 Asyndactylce, contains two families, Apterygides and 

 •Columbceides ; the second Legio, Tisyndactylce, contains 

 eleven families, distributed in four cohorts : cohort 

 Integrirostres , with families Corvides, Sturnides, Fringil- 

 Iceides, and Alaudaeides ; cohort Emarginatirostres , with 

 families Motacillceides, Laniides, Turdides, and Ampeli- 

 dides ; cohort Fissirostres, with family Hirundinides, 

 and cohort Tenuirostres, with families Certhiceides and 

 Trochilides. The third Legio, Holosyndactylce, contains 

 two families, Meropides and Prionitides. 



The tribe Ancplorhamphce covers the two families 

 Accipitrides and Strigides. 



Two families, Psittacides and Eurhynchides, constitute 

 the tribe Gyrorhamphce, while the two families Bucconides 

 and Trogonides compose the tribe Pogonorhamphce ; 

 four families, Musovorceides, Rhamphastides, Cuculides, 

 and Picides, make up the tribe Madorhamphce. 



