458 THE AMERICAN NATURALIST. [Vor. XXXV. 
SKULL. SCREAMER. SWAN. TURKEY. 
Palatines and | Gallranserine, or | Anserine. Galline. 
Vomer ith characters 
nearly equa 
divide 
Facets of ptery | Median, as in | Anterior. Anterior. 
goids. many pigeons. 
Basi-temporal 
area. 
Mandible. 
Hyoidean appa- 
VERTEBRAL 
CoLu 
Cervicals. 
[No epipleural 
Pelvis. 
Subtypically gal- 
line. 
Strongly galline, 
angular proc- 
esses approach- 
ing the Anseres 
in character. 
Galline. 
18. Pair of free 
ribs on last 
Six pairs vertebral 
ribs; all without 
wie ap- 
a Two 
pairs pelvic ribs ; 
costal ribs of 
last pair do not 
reach the ster- 
appendages on the 
Narrow and long- 
ish, but on the 
whole with quite 
dilated. 
As in other swans 
and geese 
As in other typical 
lamellirostral 
birds, and very 
ifferent from 
Palamedea and 
the fowls. 
As in the Anseres 
from Palamedea. 
21. Two last bear- 
ing free ribs, 
with epipleural 
appendages on 
last pair 
ioe pairs ver- 
ebral ribs; a// 
es — 
Three pairs i-e 
do not reach the 
sternum 
pelvic ribs in any 
Narrow and long. 
Propubic proc- 
pubic elements 
Hb dilated. 
As in most true 
fowls. 
Characteristically 
galline. 
Galline. 
I6. Asinthe swan, 
but the last cer- 
vical fused with 
the first dorsal 
vertebra. 
Four pairs vertebral 
ribs; all wi 
epipleural ap- 
pendages. One 
pair pelvic ribs; 
pair do not reach 
the sternum. 
of these birds.] 
Shorter, and broad 
in postacetabular 
ion. Quite dif- 
ferent from swan 
not dilated. 
