Gough, Kerguelen, arid South Georgia Islands. 457 



angle of the mouth. The color of the back, in our specimens, 

 agrees as closely as could be expected with the "Challenger" 

 ■figure, being black, with a slight bluish cast in most lights, due to 

 €ach feather being marked down the center with a very fine line of 

 ^' penguin blue." This is seen most plainly on the sides, directly 

 behind the flipper. The black of the crest is pure and intense. The 

 tail is gray with the shafts of the feathers darker, almost black. 

 The upper side of the flippers is pure black, with a narrow 

 border of white on the posterior edge, broadest in the middle and 

 gradually narrowing in each direction till it disappears entirely near 

 the body and tip. The anterior edge is also grayish white for 

 about the same distance, showing plainly when viewed from the 

 front, and less so, but still distinguishable, when viewed from the 

 upper side. 



The three specimens vary considerably in size among themselves, 

 as the table on page 461 will show, Mr. Comer's bird being between 

 the other two in size, but much nearer 746b. . The coloration is 

 practically the same in all, but the feathers in the crest of Mr. 

 Comer's specimen are much shorter. The shape of the bill in this 

 latter bird, and 746b is about the same, though the latter has the 

 larger bill, but 746a has a very different shaped one, being much 

 more tapering, narrower, and smaller in every way, so that, seeing 

 the bill only, I should certainly take it for a different species, as it 

 is about intermediate between our specimen of Pi/goscelis tmniata 

 and the other specimens of E. clirysoloplius^ though if anything 

 more nearly approaching the former. 



This species is very easily distinguishable from 11. chrysocoine by 

 the following points : The yellow of the crest is much brighter 

 and more of an orange (pale sulphur yellow in chrysocome)^ and 

 extends clear across the forehead and runs back on each side of 

 the head over the eyes, the whole forming a large V-shaped patch, 

 while in chrysocome the pale yellow is in the form of two separate 

 lines or stripes, one on each side of the head above the eye but not 

 meeting across the forehead. In chrysolophus the yellow feathers 

 of the forehead and the shorter ones on the sides of the head are 

 largely tipped with intense black, while in chrysocome^ all the 

 yellow feathers are yellow throughout their length. This latter 

 species also lacks entirely the yellowish white upper tail coverts 

 which are very evident in chrysolophus^ and the naked patch of 

 skin at the angle of the mouth is also much larger and plainer in 

 this latter species. Again, the dark color of the throat extends 



