40 
a sprightly animated bird frequenting the sterile districts studded 
with large trees, scrubs, and open glades, where it hops about on 
the ground in search of insects. Notwithstanding the singularly 
lengthened form of its scapularies and its terrestrial habits, it 
appears to me to belong to the same type of form as the Pachy- 
cephalcE ; its loud piping note and mode of nidification also favours 
this opinion. It lays three or four eggs in a round, cup-shaped nest, 
placed either in a grass tree ( Xanthorrhcea ) or in a hole or stump. 
127. Oreo'ica gutturalis Vol. II. PI. 8L 
Genus Dicrurus. 
A genus of which many species inhabit India and Africa, but of 
which only one has yet been found in Australia. 
128. Dicrurus bracteatus, Gould Yol. II. PI. 82. 
Family MUSCICAPIDiE. 
Genus Rhipidura. 
Many species of this genus occur in India, the Indian Islands, 
New Guinea, and Polynesia; and five or six are comprised in the 
fauna of Australia, over every part of which country, including Van 
Diemen’s Land, one or other member of the group is found to 
exist. 
129. Rhipidura albiscapa, Gould ...... Yol. II. PI. 83. 
130. Rhipidura rufifrons Yol. II. PI. 84. 
131. Rhipidura Dryas, Gould . 
Inhabits the north coast. I have not figured this species because 
it only differs from R. rufifrons in being of a smaller size, and in 
the red colouring at the base of the tail-feathers being more ex- 
tensive. 
132. Rhipidura isura, Gould . Yol. II. PI. 85. 
133. Rhipidura Motacilloides, Vig . § Horsf. . . Yol. II. PI. 86. 
134. Rhipidura picata, Gould. 
Not figured, being similar in colour but much smaller than R . 
Motacilloides ; it inhabits Port Essington. 
Genus Seisura. 
The present genus and Rhipidura are mere modifications of each 
other ; a difference of structure, however, exists of sufficient im- 
portance to justify their separation, and, as is always the case, a 
corresponding difference is found in the habits of the species. 
The present form is restricted to Australia. 
135. Seisura inquieta Vol. II. PI. 87. 
T urdus muscicola, Lath. 
— — — — dubius , Lath. 
