Genus— AT RICH ORNIS. 
Atrichornis Stejneger, Standard Nat. Hist. (Kingsley), 
Vol. IV., p. 462, 1885 ... Type (by monotypy) : A. rufescens Ramsay. 
Through Stejneger’s introduction of his name, which he proposed as the one 
Gould selected was preoccupied, the type of the genus was altered. Consequently 
the name Atrichornis belongs typically to the more recently discovered Eastern 
bird, which is smaller than the original Gouldian type from the West. With the 
genus -splitter the two birds represent distinct genera, and this is the more 
acceptable inasmuch as the two are widely separated and as the family is 
considered a very low group the differences must assume a high value if the 
species be considered phylogenetically. 
I have diagnosed Gould’s type species, which follows under my name 
Rahcinta, and here give the differential features of the present genus. The 
species is smaller throughout, with the tail shorter and less graduated and 
apparently the feathers slightly stiffer. The wings have a similar formula and the 
legs also agree in character with those of the larger species but are weaker and the 
hind-toe is proportionately longer. From these features I deduce that this is 
more like the ancestral type and has not so completely lost the superficial 
characters, and therefore an anatomical examination while specimens are yet 
available is most desirable and would prove of the greatest scientific interest. 
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