128 THE NASAL BONES OF BIRDS. 
From the above list it is evident that nearly all the schizorhinal 
birds are included among Professor Huxley’s Schizognathe. Going 
farther into detail, they may be said to embrace all the Charadrio- 
morphs, with the exception of Hdicnemus (I have not seen Cursorius). 
Among the Geranomorphe, they comprise the Gruide, together with 
Rhinochetus and Ewurypyga, but not the Rallide (from which family 
Parra should be removed to the Charadriomorphe), nor Psophia, Otis, 
and Oariama. Among the Cecomorphe they include the Laride and 
Alcides, but not the Procellariide nor the Colymbide. Among the 
Speniscomorphe none are schizorhinal. Among the Alectoromorphex 
Turniz and the Pteroclide are so; and the Peristeromorphe are all 
schizorhinal. In the other main divisions, the Desmognathez and the 
Aigithognathe, only the Hemiglottides of Nitzsch, belonging to the 
Pelargomorphe, are schizorhinal. 
The linking together of the Plovers and the Gulls by any osteolo- 
gical feature has long been a desideratum, as Professors Newton and 
Huxley have remarked ;* and the facts brought forward by the latter 
have greatly assisted in this respect. But Professor Huxley’s classifi- 
cation does too much; it places the Petrels nearer to the Gulls than 
the latter to the Plovers, and it includes the Rails in the same cate- ~ 
gory as the Cranes, which is more than collateral evidence justifies. 
If the nasal bones have the significance in classification which I would 
put upon them, and their conformation be employed in dividing up 
the schizognathous birds (with which, notwithstanding their desmog- 
nathism, Platalea and Ibis must be placed), a result is arrived at 
which pterylosis and internal anatomy greatly tend to justify. 
The following table represents my idea of such an arrangement, 
though I do not wish to give my sanction to the naturalness of the 
non-schizorhinal schizognathous group, which I believe to be open to 
criticism :— 
Scuizoanarnous Brrps (Huxley) + Hemiglottides (Nitzsch). 
Schizorhinal Birds. 
. Columbe, Pteroclide, and Turnicide. 
. Limicole (excluding Gdicnemus, and including Parra). 
. Laride. 
Gruide. 
Eurypygide and Rhinochetide. 
. Hemiglottides. 
. Alcides. 
SIO OP De 
* “This,” 1868, pp. 92 and 360, 
