Australian Birds in the Collection of the Linnean Society. 193 
mul: fasciolis transversis nigris alternis rectis, alternis un- 
dulatis, notatæ, ad latera rhachium maculis rhomboideis 
instructæ. Pectus, abdomen, caudaque subtus sordide fla- 
vescentes, obscurèque fusco-fasciate. Ale brunneæ : re- 
migum pogoniis externis guttis orbicularibus regulariter 
circumscriptis, et in seriebus quinque parallelis dispositis, 
notatis; pogoniis internis fasciis transversis, guttis oppo- 
sitis, instructis. Remiges omnium ordinum fasciolis semi- 
ellipticis terminate. ae pogonio interno maculis 
orbicularibus minoribus guttata ; ptila pogonio interno rufo- 
fasciata. Rectrices brunneæ, fasciis latis flavescenti cine- 
reoque variegatis. Tarsi plumulis fuscis saturatioribus ad 
digitos usque vestiti. Longitudo corporis ab apice rostri ad 
basin caudæ, 5; rostri ad rictum, 14; tarsi, 4 
The only specimen of this bird contained in the Society's col- 
lection was injured before it came into the hands of Mr. Caley. 
It is however sufficiently preserved to show the genus to which 
it belongs, and to afford a clear specific distinction. The bill 
has all the characters of that of the true Caprimulgus, being 
weak, narrowed, and much compressed at the aper, with round 
and elevated nostrils : the legs also, like those of the same genus, 
are short, weak, and feathered to the toes, which are uneven, 
and have the middle nail serrated. The wings are more rounded 
than in other Goat-suckers; but this apparent deviation from 
the genus is probably owing to the mode in which the specimen 
has been prepared. The plumage above is nearly perfect ; and 
the wings exhibit without any déficiency the beautiful series of 
regular round spots described above, from which the specific 
. name has been derived. But the plumage of the abdomen, and 
of the under-parts generally, is defective. Mr. Caley informs 
us that the bird was picked up dead on his premises in its pre- 
VOL. XV. 2€ sent 
