Genus — R OSINA. 
Rosina Mathews, Austral Av. Rec., Vol. I., pt. 5, 
p. 113. Dec. 24, 1912. Type (by original 
designation) Malurus coronatus Gould. 
This well differentiated genus was simply diagnosed thus : “ Differs from 
Malurus in its much longer, stouter bill with curved-over tip ; much stronger 
feet and the first primary longer, the second proportionately shorter.” 
The birds are larger, with longer wings, long wedge tail, and long legs and 
short feet. 
The bill is long, almost as long as the head, comparatively broader than 
that of Malurus , the culmen arched with sharply, strongly decurved tip ; the 
nasal groove extends more than one-third the length of the culmen, the 
operculum pronounced, the nasal apertures linear placed very forward in 
the groove ; there are no nasal bristles, but five very strong rectal bristles ; 
the under mandible is stout, broad at base, the interramal space extending 
more than one-third the length of the mandible and only partly feathered. 
The wing is longer and rounded ; the fourth, fifth and sixth primaries 
are equal and longest, the third a little shorter and equal to the eighth and 
equalled by the secondaries ; the second noticeably less and a little longer 
than the first, which is half the length of the third. 
The tail is very long and strongly wedge-shaped. 
The legs are long and stout for this group ; the feet stouter than in any 
of the preceding groups, the claws stouter, otherwise similarly formed. 
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