The only species of this genus yet discovered ranges over the whole of the country from Southern to Western Australia. Its form is adapted for the ground, but it occasionally resorts to low shrubby trees. 163. Drymodes brunneopygia, _Gould_ Vol. II. Pl. 10. Genus EÖPSALTRIA, _Swains._ Three species of this genus are all that are yet known; two of these are natives of Western Australia, and the third of New South Wales. 164. Eöpsaltria Australis Vol. II. Pl. 11. _Sylvia flavigastra_, Lath. Gen. Hist. vol. vii. p. 137? 165. Eöpsaltria griseogularis, _Gould_ Vol. II. Pl. 12. _Muscicapa Georgiana_, Quoy. et Gaim. Voy. de l’Astrolabe, pl. 3, fig. 4? 166. Eöpsaltria leucogaster, _Gould_ Vol. II. Pl. 13. _Muscicapa gularis_, Quoy et Gaim. Voy. de l’Astrolabe, pl. 4, fig. 1? Subfamily MENURINÆ, _G. R. Gray_. Genus MENURA, _Dav._ It might have been expected that the various explorations which have of late years been made into the previously unknown regions of Australia would have led to the discovery of some additional species of this genus, or of some new form more nearly allied to it than those with which it is associated, but nothing of the kind has occurred. 167. Menura superba, _Dav._ Vol. II. Pl. 14. This remarkable bird is not only confined to Australia, but exclusively to the south-eastern part of the country. I regret to say that I have not been able to gain any further information respecting its nidification, although I have urged many persons in Australia to pay particular attention to the subject. Genus PSOPHODES, _Vig. & Horsf._ Among the many novelties comprised in the present work is a second species of this form, of which only one was previously known. 168. Psophodes crepitans Vol. II. Pl. 15. _Corvus auritus_, Lath. Gen. Hist. vol. iii. p. 42. Inhabits the south-eastern parts of Australia. 169. Psophodes nigrogularis, _Gould_ Vol. II. Pl. 16. This new species is a native of the western coast. Genus SPHENOSTOMA, _Gould_. Generic characters. _Bill_ very short, compressed laterally, wedge-shaped, upper mandible without a notch at the tip, two or three fine hairs at the base; _tomia_ straight; _nostrils_ basal, round, open; _wings_ very short and round, the fourth, fifth and sixth primaries nearly equal and the longest; _tail_ long and graduated; _tarsi_ moderately long and strong, shielded before with several plates, entire behind; _toes_ short, hind-toe strong, lateral toes unequal, the inner one the shortest. The only known species of this genus frequents the sterile parts of the interior of Australia generally, particularly those portions of the country clothed with low shrubs and bushes.