Genus— AN 0 U S. 
Angus Stephens, in Shaw’s Gen. ZooL, Vol. XIII., pt. i., 
p. 139, 1826 . . . . . . . . . . . . Type A. stolidus. 
StoUda Lesson, Traite d’Orn., p. 620, 1831 . . . . . . Type A. stolidus. 
Gavia Swainson, Classif. Birds, Vol. II., p. 373, 1837 . . Type A. stolidus. 
Aganophron Gloger, Hand-u-Hilsf. Naturg., p. 463, 1842 . . Type A. stolidus. 
This and the succeeding genera of the Sternince are characterised by the 
nature of the bills and especially the formation of the tail. In no case are 
the outer rectrices developed into streamers, but in some genera they are 
absolutely the shortest. 
Largest Noddies (by which name these Terns are known) with long stout 
biUs, long wings and tails (though no streamers are present), short legs but 
long toes. 
The culmen is as long as the head, stout, broad at the base, much longer 
than the tarsus. The nostrils are placed in a deep sulcus which extends 
almost half the length of the bill, and the anterior end of the nostril is about 
half way from the base of the bill to the tip. The tail is long, more than half 
the length of the wing, forked, but the fourth pair of feathers from the 
outside is the longest, while the outside pair is the shortest ; the middle pair 
is longer than the pair next the outside, but shorter than the third pair 
from the outside, which is subequal with the fifth pair. The toes are long 
and fully webbed. 
Two prior names have been quoted (e.g. Gray, Gat. Gen. Subgen. Birds ^ 
p. 131, 1855) as referable to this genus, viz. Nodinus, Bafinq., 1815, and Noddi 
Cuv., 1817. The first-named, as published in the Analyse, has nothing to 
show that it is relative to this genus, and is an absolutely nude name. 
The second is a vernacular only in Cuvier’s Le Regne Anim., and is 
one of the names that appear among the “ Oken ” names, as pointed out by 
myself in the Nov. ZooL, Vol. XVIII., pp. 453, 455, 1912, but has not been 
adopted by the American Ornithologists’ Union when they utilised Quer- 
quedula, Marila, etc., from that source, though, of course, it had nine years 
priority. The illegality of the acceptance of the ‘‘ Oken ” names seems now to 
be generally admitted, so that we have not to displace Anous by the “ pure 
Latin ” name Noddi. 
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