3874 Unwersity of California Publications in Zoology  \Vou. 18 
gives appearance resembling that of the fused outer bar of proximal 
vanules of tinamous, but in present case pennula are merely in 
close juxtaposition. 
Colui.—Unfortunately no feathers of birds of this group have 
been available for study. 
Pict.—This suborder, including the Galbulidae, Capitonidae, 
Rhamphastidae, and Picidae, seems to be intermediate between 
Passeriformes and Coraciiformes, the Galbulidae being nearer the 
Coraciiformes, the other families nearer the Passeriformes. In 
Galbulidae, exemplified by Jacamerops grandis, the distal barbules 
of inner vane of remiges (pl. 33, fig. 91a) very long and slender, 
the pennulum relatively small, as in Trochilidae. Distals of outer 
vane similar to those of Coracias (pl. 33, fig. 91b). Proximals of 
inner vane with very long, narrow base and stout, tapering pennu- 
lum about half as long as base; on outer vane a well-developed 
series of hooked ventral cilia (pl. 33, fig. 91¢). In the Bucconinae, 
represented by Malacoptera fusca, barbules are of typical passerine 
type. 
In the Picidae the barbules of the remiges are of typical passer- 
ine form. Distal barbules of inner vane with relatively large and 
long base, the subnuclear area suddenly narrowing before the small 
ventral teeth; pennulum relatively small with all the barbicels 
well developed, but small (pl. 33, fig. 89a). Proximals of inner 
vane (pl. 33, fig. 89b) with slender elongate base, imeonspicuous 
ventral teeth, and moderate pennulum somewhat shorter than base. 
Outer vane differs in distal barbules having shorter base, relatively 
larger pennulum, and longer hooklets, and proximal barbules having 
a rather heavy elongated pennulum with short, slightly hooked 
ventral cilia (pl. 33, figs. 89¢ and d). The Capitonidae and 
Rhamphastidae agree very closely with the Picidae, the back feathers 
of Rhamphastidae, represented by Rhamphastus ariel, being remin- 
iscent of the Trogonidae in the straight, inflexible cilia of the distal 
barbules, these being largest near tip of pennulum (pl. 33, fig. 90c). 
c) Down 
The down barbules of the various groups of Coraciiformes differ 
to a very considerable degree, but in nearly all cases they are pig- 
mented and the nodes are more or less distinct. 
In Coracias, Merops, Momotus, and Irrisor, the down barbules 
are of moderate length, the cells rather long and gradually swell- 
