The premaxilla is always unpaired, but each half has three long processes directed backwards; one fuses with the maxillary bone, another helps to form the anterior part of the palate, while the third, together with its fellow, forms the " culmen " and extends backwards to the frontals, or rather to the ethmoid which there crops up on the surface. [Please select]
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The small lacrimal bone anterior to the plate articulates with the maxilla and the premaxilla. [Please select]
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--From the posteriormost border of the nasals to the posterior end of the extension of a premaxilla. [Please select]
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He points out also that in all carduelines, the prepalatine bar is flared at its juncture with the premaxilla, and that the mediopalatine processes are fused across the midline; noncardueline fringillids lack these characteristics. [Please select]
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The premaxilla is a relatively weak bone in _Bombycilla_ and _Phainopepla_, stronger in _Ptilogonys_, and is notably heavy in _Phainoptila_ and _Dulus_, and in these latter two genera shows a sharply-ridged tomium. [Please select]
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