Page 935. 
464 - ON INDICATOR MAJOR. 
into a bony box, formed by the fusion of the lowermost rings. © To 
the enlarged uppermost bronchial half-ring (aq@) the single slender 
intrinsic muscle of each side fans out to be attached at its middle. ~ 
Summing up the results of the above analysis, it may be stated 
that, among the Piciform birds, pterylosis, osteology, myology, and 
visceral anatomy place the Picidw, Indicator, the Capitonide, and the 
Ramphastide in one great group of subordinal importance (if the 
peculiar hammer skull of the Picide be omitted from consideration). 
In this suborder the Picide constitute one main division—a family ; 
whilst I, for one, cannot separate off the Capitonide from the Ram- 
phastide by any well marked differences, the two subfamilies graduat- 
ing into one another. 
Fig. 3. 
Syrinx of Indicator major (enlarged) ; anterior aspect. 
Indicator must, in my opinion, also be placed in this family, from 
all members of which it differs in possessing an extra pair of rectrices. 
_ No one, however, objects to keeping all the Momotide together because 
of a similar difference in some of its genera; why remove Indicator 
therefore from its allies? Nevertheless Indicator is not exactly like a 
Capitonine bird in certain details, so may be placed as a subfamily by 
itself, the Indicatorinez ; and the whole series may be thus tabulated. 
Order. Suborder. Family. Subfamily. 
Picidee Tndicatorine. 
Piciformes. Pici. Ca nid Capitonine. 
spon Ramphastine. 
