OSTEOLOGIA AVIUM. 
Cervical.| Dorsal. | Sacral. | Caudal. 
Huryceros prevostii - - - - - - - - - = 10 7 8 7 
Opisthomus cristatus - - = - - - - - - 10 0 10 5 
Rhynochetus jubatus - - - - - - - - - 14 7 10 7 
Centropus rufipennis - - - - - - = - 12 6 10 5 
Scythrops, Novee hollandize non ane - - = = = — — — — 
Zanclostomus javanicus - - - - - - - - - 10 6 12 5 
Zanclostomus sumatranus - - - - - - = - 10 7 9 6 
Siruthideaemerca. = =r) =. = = = = 12 8 10 a 
Ptilorhynchus smithii - - - - - - - - = 12 8 10 7 
Dendrocitta vagabunda - - - - - - - - - 12 8 g 6 
Stercorarius pomarinus - - - - - - - = - Ll 8 10 8 
Ardea herodias - - - -.-+-/= =.-.- = = 16 8 12 7 
. NOTE. 
RHYNOCHETUS. 
Jdubatus. 
Provisionally I have classed this bird with the Psophiade, but there is another family with which 
it agrees in many respects, but without knowing anything of the habits of the Kagu, not much 
can be finally determined. ‘The family alluded to is that of the Rallide, in which Aramus 
scolopozeceus is placed by Mr. Gray ; it has long feet, like Rhynochetus, and the same form of 
sternum. The eggs of the Kagu, of which I have two, are white, spotted with brown ; while those 
of Posphia, Mr. Bartlett informs me are white. Nuttall says the eggs of Aramus are two in 
number ; Audubon that they rarely exceed five or six, but neither of these Naturalists say of what 
colour they are, or shape ; they are not like any heron that I know of, or those of Eurypyga, but 
more like those of a coot, or large rail. 
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