PACHYPTILA FORSTERI. 



The length of our specimen is nearly thirteen inches. The bill is bluish- 

 grey, very broad at the base, and growing suddenly narrower at the tip, 

 which is much hooked and sharp, the inner edges are pectinated : the un- 

 der mandible is powerful, and bends downward at the point, following the 

 form of the upper. The nostrils are placed at the base, on the centre of 

 the bill, and stand forward about a quarter of an inch : they are tubular, 

 as in the Petrels. The upper parts of the plumage are a fine bluish-grey, 

 darker on the wings, and there inclining almost to blackish-grey. The 

 shoulders and outer edges of the three first quills are black : the remain- 

 ing quills, secondaries, and tips of the tail feathers, except the three outer- 

 most, deep blackish-grey ; a patch under the eyes is of the same colour, 

 and above each there is a streak of white. The under parts are pure 

 white ; and, on the breast, the grey colour of the back extends forward, and 

 forms a sort of half crescent of a lighter tint. The tail is of the same co- 

 lour with the upper parts, except the dark tips ; and the two centre fea- 

 thers are about a quarter of an inch longer than any of the others. The 

 upper and under coverts are very long, the upper ones reaching to within 

 half an inch of the extremity, the undermost exceeding the tail in length. 

 The legs and feet are greenish-yellow, and of the same formation with the 

 Petrels. 



