. 
‘260 ELEMENTS OF ORNITHOLOGY. 
arranged in a simple row not extending beyond the secondaries ; 
colic ceca almost always present; a spinal feather-tract on a 
considerable part of the neck, well defined by lateral bare tracts 
and not split by a spinal bare tract; hind toe supplied by a 
tendon from the flexor longus hallucis'; no ambiens or accessory 
femoro-caudal ; oil-gland present but nude; feet non-zygodac- 
tyle; mid-front of sternum not perforated to receive processes 
of coracoids ; no basipterygoid processes ; dorsal vertebrae never 
opisthoccelous ; cervical vertebre never more than fifteen. 
Suborder 1. Passeres. 
Palate egithognathous*; not more than 15 cervical ver- 
tebre; tendons of flevores hallucis and longus digitorum not 
connected ; manubrium generally bifurcated ; intrinsic vocal 
muscles mostly fixed to ends of bronchial semirings; lower end 
of trachea almost always modified into a vocal organ; bill often 
long and slender; rarely broad, with very wide gape; hand 
not very long or humerus very short. 
Suborder 2. Eurylemi. 
Palate eegithognathous ; nasals holorhinal® ; dorsal vertebre 
heteroceelous *; tendons of flewores hallucis and longus digi- 
torum connected ; manubrium not bifurcated; intrinsic vocal 
muscles fixed near the middle of the bronchial semirings ; lower 
end of trachea not modified into a vocal organ; bill always 
very broad, and gape very wide; hand not very long or humerus 
very short: a large purse-like nest; eggs minutely spotted with 
brown. 
Suborder 3. Trochili. 
Palate more or less schizognathous ; basipterygoid processes 
absent; nasals holorhinal ; thyro-hyals arching over skull, as in 
Woodpeckers ; tendons of flevores hallucis and longus digitorum 
See ante, p. 205. 2 See ante, p. 186. 
5 See ante, p. 18]. 4 See ante, p. 171. 
