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Show 1878.] PROF. A. H. GARROD ON INDICATOR MAJOR. 935 the Ramphastidae in one great group of subordinal importance (if the peculiar hammer skull of the Picidae be omitted from consideration) . In this suborder the Picidae constitute one main division- a family; whilst I, for one, cannot separate off the Capitonidae from the Ramphastidae by any well marked differences, the two subfamilies graduating 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. N o one, however, objects to keeping all the Momotidae 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 Indicatorinae; and the whole series may be thus tabulated. Order. Suborder. Family. Subfamily. f P* 'da-- f Indicatorinae. Piciformes. Pici. [ Ol p i t o n i d ^ Capitonine. •* r [ xtamphastmjB. ( i l* |