KNOBBED-BILLED PHALERIS. 101 



parts, with the exception of the flanks, which are black. All the up- 

 per parts also are greyish-black. 



Length to end of tail 10^ inches ; bill along the ridge |^ ; along the 

 edge of lower mandible \^^ ; wing from flexure b^^ ; tail 1^ ; tarsus 1^ ; 

 middle toe l/^j its claw 1%. 



Young fully fledged. Plate CCCCII. Fig. 2. ' ^" ^--^ 

 The young bird has the bill black, the feet dusky, the upper parts 

 blackish-grey, each feather black in the centre, the lower greyish-yel- 

 4ow, transversely barred with dusky, the tail broadly tipped with 

 white. 



KNOBBED-BILLED PHALERIS. 



PhALERIS NOniROSTBIS, BONAP. «y^'^^*:*:f- — — 



PLATE CCCCII. Adult. 



This bird, which at first sight bears a considerable resemblance to 

 the Little Guillemot, Uria Alle, I have also represented from a specimen 

 belonging to the Zoological Society of London. The following de- 

 scription, however, is taken from one in my own possession. The species 

 is said to occiu" on the north-west coast. 



Adult. Plate CCCCII. Fig. 3. 



BiU shorter than the head, stout, quadrangular at the base ; upper 

 mandible with a roxmdish, compressed, decurvate knob on its ridge, be- 

 tween the nostrils, beyond which the outline is deflected and convex, 

 the sides sloping, the edges sharp and overlapping, with a sinus be- 

 hind the small rather obtuse tip; nostrils linear-oblong, operculate, 

 basal, near the margin ; lower mandible with the angle rather long, the 

 dorsal line ascending and slightly convex, the sides sloping outwards 

 and flat, the edges directed outwards, thin, the tip acute, with a slight 

 sinus behind. 



Body full and compact ; neck short and thick ; head rather large, 

 ovate. Feet short, stout, placed far behind ; tibia bare for two-twelfths 



