KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 52. N:o |7. 81 
typical specimen: HEar-coverts black, but these black spots do not reach the eyes. 
The eye-brow whitish, not extending as far as in the case of the type. These two 
specimens not moulting; old birds. Size the same as that of the type. 
Chalcococcyx basalis HoRrsr. 
Math. handl. n:r 410. 9 ad. Derby, Kimb. !7/;9 1910. 
This specimen has the breast shaded with greyish and rufous-buff. 
This form was seen on several occasions in the bush round Derby and in 
Beagle bay. 
Chalcococcyx plagosus LATH. 
Math. handl. n:r 412. SJ ad. Derby, Kimb. ?9/:9 1910. 
This specimen differs form the type by having a strong metallic green gloss 
on the crown, not violet-brown as is stated in Cat. of birds. The crown sharply 
defined in colour from the glossy greenish-bronse-coloured back. Ochre-red circle 
- around the eye. 
Only this one specimen was observed during our journey. 
Centropus phasianus LATH. 
Math. handl. n:r 417. JF ad. Sunday Island !6/; 1911; 2 SS ad., 9 ad. Nooncanbah, Fitzroy r. 4/1, 
Söta mout. 
Juvenal. — Specimen ”'/i seems to be a younger bird, which, having just 
finished moulting, has obtained the adult plumage. This specimen is 12,5 cm. shorter 
than specimen no. 4 (2 ad.). Length of the wing 23,5 cm. and 28 cm. respectively. 
In the black portions of the plumage there are some brown white-shafted feathers 
left. The wing, especially the scapulares and the secondaries, more deep chestnut 
than in the other specimens. 
Varrants. — Only in size. All of them are in full breeding plumage. The 
biggest specimen (2 ad.) total length 72 cm., wing 28 cm., the smallest (not young) 
male total length 62 cm., wing 25,5 cm. 
Moulting. — The specimen that looks like a younger bird has brown feathers 
left in the black portions. No tail-feathers dropped. 
Specimen no. 2 is fully-moulted as far as the body is concerned, but the wing- 
feathers are not dropped yet, and in the tail only a few feathers are changed. 
Specimen no. 4 is a big fully-moulted specimen. The specimen from Sunday 
Island is also fully-moulted. 
Moulting-season — comes in January. 
EK. Sv. Vet. Akad. Handl. Band 52. N:o 17. 11 
