2160 The Zoologist. — June, 1870. 



the posterior extremity of the nostrils; thence following the 

 sinuosities of the commissural edge of the upper mandible to the 

 supernumerary piece, and around the border of the latter,* but not 

 encroaching upon it. Interramal space of lower mandible densely 

 feathered ; but no feathers encroach upon the sides of the lower 

 mandible, contrary to the usual rule in this group. 



Wings and tail of the usual shape and structure of this group; the 

 length of the latter contained three and a half times in the length of 

 the former from the carpal joint to the end of the longest primary. 

 Legs short, stout, little compressed. Tarsus entirely reticulate, shorter 

 than middle toe without claw ; outer toe as long as the middle one ; 

 its claw shorter and smaller than that of the middle one. Inner lateral 

 toe extremely short, the tip of its claw falling far short of the base of 

 the middle claw. 



Adult: An elongated crest of twelve to twenty slender feathers 

 springing in a bundle from one point at the extreme forehead, far in 

 advance of the angle of the rictus, and curving over forwards in the 

 greater part of a circle. These feathers are not truly filamentous, 

 having well developed, though short barbs, and appear narrower than 

 they really are, from the slight obliquity of the barbs from the shaft. 

 A slender bundle of filamentous feathers from the posterior canthus of 

 the eye over the auriculars and sides of the neck. A very few shorter 

 filamentous feathers forming a sparse interrupted superciliary series. 

 All these filamentous feathers white or whitish ; the crest concolor 

 with the plumage of the upper parts. General colour of the crown, 

 nape, wing, tail and whole upper parts glossy blackish, with a good 

 deal of a fuliginous or brownish (not plumbeous or cinereous) tint ; 

 under parts a diluted shade of the same, or much more brownish gray, 

 tending on the abdomen and posterior under parts generally to ashy 

 gray. Under surfaces of wings and tail like abdomen. Bill and 

 appendages orange or vermilion-red, yellowish towards the tip. 

 Feet dusky greenish, an indefinable colour, in the dried state. 



Length about 900; wing 525; tail I'SO; tarsus, 9'00 ; middle toe 

 and claw 135; outer toe aiid claw about the same, or slightly less; 

 inner toe and claw TOO. Bill : chord of culmen '45; tomia of upper 

 mandible, excluding supernumerary piece •70; greatest width of the 



* This supernumerary corneous element is not attached by its whole surface to 

 the subcumbent bone ; but a part of its upper border is free and projects a liltle 

 away from ihe skull. The fossa down behind this free raised border is fully 

 feathered. 



