Genus— TASMANOKNIS. 
Tasmanornis Mathews, Nov. Zool., Vol. XVIII., 
p. 353, Jan. 31, 1912. Type (by monotypy) Sericornis humilis Gould. 
When I proposed this genus I was adopting a lumping policy so did not give 
any details. 
The bird is larger than Sericornis, with longer wings, longer tail and stronger 
legs and feet. 
The bill is similarly formed, the rictal bristles more pronounced, the nasal 
bristles projecting a little, and the interramal space longer. 
The wing has the fourth, fifth, sixth and seventh primaries subequal and 
longest, the eighth longer than the third, while the secondaries exceed in length 
the second primary : the first primary is rather narrow but is about half the 
length of the third, being more than half the length of the second. 
The long tail is nearly square, being very slightly rounded. 
The legs are quite like those of Sericornis but are stronger and the front 
of the tarsus appears clearly scutellated in some birds, obscurely so in others, 
due to the fusion of the plates. 
This genus is obviously the island representative of the mainland 
maculatus form and shows quite as much difference from its mainland 
relations as does Acanthornis. 
30 
