334. Zosterops dorsalis, Vig. & Horsf.Vol. IV. Pl. 81.
335. Zosterops chloronotus, GouldVol. IV. Pl. 82.
336. Zosterops luteus, GouldVol. IV. Pl. 83.

Family CUCULIDÆ, Leach.

The family Cuculidæ is very fairly represented in Australia, since we there find species belonging to the greater number of the Old World genera, and one, Scythrops, which has not hitherto, I believe, been found elsewhere. With the exception of Centropus and Eudynamys, they, like their prototypes, are parasitic in their nidification, and depend upon other birds for the hatching of their eggs and the feeding of their offspring.

Genus Cuculus, Linn.

337. Cuculus optatus, GouldVol. IV. Pl. 84.

Since my description of this species was printed I have seen specimens from India, with the name of Cuculus micropterus attached to them: should this name have been published prior to the one I have assigned to it, my name must sink into a synonym.

338. Cuculus inornatus, Vig. & Horsf.Vol. IV. Pl. 85.
    Columba pallida, Lath. Gen. Hist. vol. viii. p. 30.
339. Cuculus cineraceus, Vig. & Horsf.Vol. IV. Pl. 86.
340. Cuculus insperatus, GouldVol. IV. Pl. 87.
341. Cuculus dumetorum, Gould

This species, which inhabits the north-western coast, differs from C. insperatus in being of a much smaller size and in the whole of the plumage being of a browner hue.

Genus Chrysococcyx, Boie.

The members of this genus are distributed over most parts of the Old World; two species occur in Australia.