218 Zoological Society : — 



his own collection under the names of Eudyptes nigrivestis and E. 

 diadematiis . 



Mr. Gould remarked that the species of this well-defined crested 

 group now known were : — 



Eudyptes chrysolophus. I Eudyptes nigrivestis. 



chrysocome. diadematus. 



pachyrhynchus. \ 



The following were the descriptions given of the two new spe- 

 cies : — 



Eudyptes nigrivestis, Gould. 



Face, chin, upper part of the throat, and sides of the neck black ; 

 feathers of the forehead and crown long, narrow, and silky-black ; 

 those on the sides of the head considerably prolonged ; a stripe of pale 

 straw-yellow commences at the nostrils, continues over the eye, and 

 extends in lengthened narrow fila)nentous feathers behind that organ; 

 upper surface black, each feather with a narrow line of greyish-blue 

 at the tip ; outer side of the wing shining black, edged posteriorly 

 with white ; tail black with grey reflexions ; all the under surface of 

 the body and the under surface of the wing, except at the base and 

 tip, silky-white, the base and tip being sooty-black ; bill chestnut- 

 brown; eye pinkish-chocolate ; feet livid. 



Total length 2\\ inches, bill 2, wing 5|-, tail 4, tarsi |. 



Habitat. The Falkland Islands, where it is known by the name of 

 " Rock-hopper." 



Remark. The species to which this bird is most nearly allied 

 appears to be E. chrysocome ; but it differs in being of a smaller 

 size, in its much darker colouring, particularly of the throat, sides of 

 the face, and wings ; the superciliary stripe and the filamentous feathers 

 into which it is prolonged are also much less developed. 



Eudyptes diadematus, Gould, 



Face, chin, upper part of the throat, and sides of the neck sooty- 

 black ; feathers of the forehead and crown long, narrow, and silky- 

 yellow at the base, and silky-black for the remainder of their length, 

 those on the sides of the head considerably prolonged ; a stripe of 

 chrome-yellow commences at the nostrils, continues over the eye, 

 and extends in lengthened narrow filamentous feathers behind that 

 organ ; upper surface black, each feather with a narrow line of greyish- 

 blue at the tip ; outer side of the wing dark-grey, edged posteriorly 

 with white ; (ail black with grey reflexions ; under surface of the body 

 and the under side of the wing, except at the base and tip, silky- 

 white, the base and tip being sooty-black ; bill chestnut-brown ; eye 

 pinkish-chocolate ; feet livid. 



Total length 2.5 inches, bill 2|, wing 6, tail 4|, tarsi \\. 



Habitat. ^The Falkland Islands. 



Remar/c. This is a somewhat large species, and bears the same 

 relationship to E. chrysolophus, that E. nigrivestis does to E. chry- 

 socome ; it differs, however, from E. chrysolophus in the darker 

 colouring of its chin and the presence of the rich chrome-yellow stripe 



