INTRODUCTION. 
liii 
Family ? 
Subfamily ORIOLIN^, G. R. Gray. 
Genus Oriolus, Linn. 
Typical Orioles are widely distributed over Europe, Africa, Asia, the Indian Islands and Australia, but none 
have yet been discovered in Polynesia or America. 
Three species inhabit Australia, two of which are figured; the third from the northern part of the country is 
so nearly allied to the O viridis, that a description alone will be sufficient. 
263. Oriolus viridis, Gould . . . . . . . Vol. IV. PI. 13. 
264. Oriolus affinis, Gould. 
Inhabits the neighbourhood of Port Essington, and only differs from the preceding species in having a shorter 
wing, a much larger bill, and the white spots at the tip of the lateral tail-feathers much smaller. 
265. Oriolus flavovinctus . Vol. IV. PI. 14. 
Genus Sphecotheres, Vie'ill. 
Australia presents us with a single species of this genus ; others inhabit New Guinea and the neighbouring- 
islands ; but as yet we have no evidence of the form occurring on the continent of India. 
266. Sphecotheres Austrahs, Swains. . . . . Vol. IV. PI. 15. 
Turdus maxillaris, Lath. Gen. Hist. vol. v. p. 129 ? 
Nothing whatever is known of the nidification of this bird ; in all probability it will prove to be very similar to 
that of the Orioles. 
Family ? 
Genus Corcorax, Less. 
A genus containing only one species which possesses many singular habits ; its actions among the branches, 
its mode of progression over the ground, and its nidification, being equally remarkable. 
267. Corcorax leucopterus Vol. IV. PL 16. 
Family ? 
Genus Struthidea, Gould. 
Generic characters. 
Bill shorter than the head, robust, swollen, arched above, deeper than broad ; gonys angular ; nostrils basah 
lateral, round and open ; wings moderate, round, first primary short, the fourth and fifth the longest ; secondaries 
long and broad ; tarsi scutellated in front, plain behind ; toes long and strong, the outer one longer than the inner 
one ; claws strong, compressed and much curved. 
The only known species of this form is confined to the interior of the southern and eastern parts of Australia, 
■where it inhabits stony ridges, and is mostly observed on the Callitris. 
268. Struthidea cinerea, Gould . . . . ■ . . ..... . . Vol. IV. PL 17. 
In my account of this species, I have stated that its actions are very similar to those of the Corcorax leuco- 
pterus, and the following extract from Mr. Gilbert's Journal of his overland journey to Port Essington shows that 
the two birds assimilate still more closely in their nidification : — 
" Oct. 19. — Strolled about in search of novelties, and was amply repaid by finding the eggs of Struthidea 
cinerea. I disturbed the bird several times from a rosewood-tree growing in a small patch of scrub, and felt assured 
