INSESSOllKS. 441 



about one inch and thrcc-cighths long by seven-eighths 

 broad. 



The sexes are aUke in pknnage, and may be thus described : 

 The whole of the upper surface olive-brown, each feather 

 with a lunar-shaped mark of black at the tip ; wings and tail 

 olive-brown, the former fringed with yellowish olive and the 

 outer feather of the latter tipped with white ; under siu'facc 

 white, stained with buff on the breast and flanks, each feather, 

 with the exception of those of the centre of the abdomen and 

 the under tail-coverts, with a lunar-shaped mark of black at 

 the tip, narrow on the breast and abdomen, and ])road on the 

 sides and fliuiks ; irides very dark brown ; bill horn-colour, 

 becoming yellow on the base of the lower mandible ; feet 

 horn-colour. 



Family PARADISEID^? 



I certainly consider the following accounts of the extra- 

 ordiujuy habits of the Ptilonorhpichi and Chlamyderm as 

 some of the most valuable and interesting portions of my 

 work; and, , however incredible they may appear, they have 

 been fully confirmed by specimens of the Ftilonorhynckus 

 holoscriceus having constructed their bowers in the Gardens 

 of the Zoological Society of London, and by the observation 

 of other persons in Australia. These, with the genera Ailu- 

 rcedus and Sericulus, appear to me to constitute a very natural 

 group, and to be nearly allied to the ParadiseidcB. 



Genus PTILONORHYNCHUS, KuU. 



Of this genus I am acquainted with only a single species, 

 the well-known Satin-Bird of the colonists. 



