PHYLOGENY OF THE PALZOGNATHA AND NEOGNATHA., 153 
C. CASUARIUS VIOLICOLLIs. 
C, UNAPPENDICULATUS. 
A, spinale.—As in C. casuarius salvadorit. 
A. mesogastrei.—This was much more clearly defined than in C. casuarius. Its 
width exceeded that of the apterium spinale. 
I have not been able to examine spirit-specimens of nestling Cassowaries. Con- 
sequently I am unable to say whether there is an oil-gland, as in Dromeus (p. 154) ; 
or whether the general pattern of the body-coloration is continued on the podotheca, 
and the integument covering the nasal fossa: features which obtain in Dromeus. 
One conspicuous difference between the nestling and the adult Casuarius is the fact 
that the head and neck are densely feathered in the former. The casque is indicated 
by a horny plate covering the roof of the skull. 
DROMZUS NOVA-HOLLANDI&. (Nestling.) 
Apteria :— 
A. spinale.—This is wanting. 
A, mesogastrei.—In form and relations this agrees with Caswarius, but is relatively 
much smaller. 
A. trunci laterale.-—As in Casuarius. 
Pteryle :— 
P. alaris.—-There are 17 remiges in all. Of these, 10 are cubitals and 7 metacarpo- 
digitals. These remiges in the adult are peculiar, lacking the calamus and 
possessing an aftershaft. 
The tectrices are arranged in obliquely transverse rows, as in Rhea (p. 156), but they 
are not sharply separated one from another as in that genus. Furthermore, they are 
not separable into major, median, minor, and marginal series as in Neognathe. They 
extend outwards on to the manus. All the primaries apparently belong to the meta- 
carpal series. Digit II. is free. That is to say, so much of this vestigial digit as 
remains projects freely beyond the feathers, and bears a claw as in Archwopterysx, 
Opisthocomus, and the Galline. In these last the claw appears in the embryo. 
There is no ala spuria; and rectrices are also wanting. 
Rhamphotheca.—That of the upper jaw resembles that of Caswarius. The rhinotheca, 
caudad, is sharply distinguished from a thin cere in which the nostrils, which ave 
impervious, are placed. The position of the nostrils is about the middle of the 
beak. They are not protected by an opercuium. 
The sheath of the lower jaw is also composed, as in Casuarius, of three pieces—a 
median and two lateral. The tomium bears slight traces of denticulations similar to 
