Genus— ORIGMELLA. 
Origmella Mathews, Austral Av. Rec., Vol. II., 
pt. 4, p. 76, Dec. 29, 1913. Type (by original 
designation) ... ... ... ... ... ... Sylvia solitaria Lewin. 
Origma Gould, Synops Birds Austr., pt. IV, App. p. 3, 
Apl. 1, 1838. Type (by original designation) ... Sylvia solitaria Lewin. 
Also spelt — 
Orygma Des Murs in Chenu’s Encycl. & Hist. Nat., Vol. IV., p. 39, 1854. 
Not— 
Orygma Meigen, Syst. Beschr. Zweifl. Inaekt., Vol. VI., p. 6, 1830. 
Small birds with long slender bills, rounded wings, long square tail and medium 
legs and feet. 
The bib is shorter than the bead, laterally compressed with very little 
basal expansion, the culmen ridge showing a semikeel with the sides slope steep 
and the tip scarcely notched ; there is a deep nasal groove, about one-third 
the length of the bill in which the linear nostrils are seen, hidden by a notable 
operculum ; the under mandible is rather weak, the interramal space one- 
third its length, the gonys a little upcurved ; the rictal bristles are four in 
number, strong and prominent, the frontal feathers approaching on to the 
nasal groove. 
The wing is very rounded, the fourth, fifth, sixth and seventh primaries 
equal and longest, the eighth as long as the third, the second shorter than the 
secondaries which equal the tenth, while the first primary is about half the 
length of the third. 
The tail feathers are broad, the shape square. 
The legs are long and slender, the tarsus booted in front and bilaminate 
posteriorly. 
The toes are slender, the outer longer than the inner ; the outer toe and claw 
shorter than the middle toe without claw ; the claws rather long and sharp ; 
the hind-toe short and stouter with the claw longer so that the hind-toe and 
claw is equal to the outer toe. 
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