Genus— M ACRONECTES. 
Macronectes Richmond, Proc. Biol. Soc. Wash., Vol. 
XVIII., p. 76, 1906 . . . . . . . . . . Type M. giganteus. 
Ossifraga Hombron and Jacquinot, Comptes Rendus Sci., 
Paris, Vol XVIII., p. 356, 1844 (not of Wood, 
1836) . . . . . , . . . . . . . . Type M. giganteus. 
(Also spelt Ossifragua Gray, Cat. Gen. Subg. Birds, p. 129, 1855, and Ossifragra Hutton, 
Cat. Birds New Zeal., p. 44, 1871.) 
An unmistakeable generic type of Procellarian bird, being of large size, sur- 
passing some of the smaller Albatroses. The bill is very stout, longer than 
the head, and also longer than the tarsus. The nasal tube is more than hah the 
length of the chord of the culmen, and reaches to the unguis ; it is flattened 
and broad at the base, and showing a median keel, and narrowing to a small 
circular aperture, apparently single, the septum being far within. A specimen 
measured gave breadth at base 28.5 mm., at aperture 14 mm., diameter of 
aperture 9 mm. The interramal space is feathered. 
In the wing the flrst primary is longest, and the general shape is rounded. 
The tail is also rounded, and the rectrices number sixteen, a feature shared 
with no other member of this family. 
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