120 
of this genus, the members of which are but few in number, and 
the specific differences of which are not well understood or easily 
decyphered. 
626. Plotus Novse-Hollandiae, Gould . . . Yol. VII. PL 75. 
Genus Sula. 
Four fine species of this genus appertain to the Australian fauna, 
since they not only frequent the seas adjacent to the shores of that 
country, but all of them resort to its rocks and islands for the pur- 
pose of breeding. 
The genus comprises several other species which inhabit nearly 
every part of the globe. 
627« Sula Australis, Gould Yol. VII. PL 76. 
Inhabits the southern coast of Australia and Van Diemen’s Land, 
and is a beautiful representative of the Sula jBassana and S. mela- 
nura of Europe. 
628. Sula personata, Gould Vol. VII. Pl. 77. 
Common on the east coast. 
629. Sula fusca, Briss Yol. VII. PL 78. 
“ This species of Booby,” says Mr. M‘Gillivray, “ is generally 
distributed on the north-east and north coasts of New Holland ; but 
I found it breeding only upon Bramble Key, although I once, on 
Raine’s Islet, found a solitary egg. The nest is slovenly made of 
dried herbage, a foot in diameter, with scarcely any cavity, and con- 
tains two eggs, of which in every instance one was clean and the 
other very dirty. The eggs, which are white, vary considerably 
in size. The largest measured 2-^ inches by lf^ ; the smallest 
by lj|> and one of average size, 2f by If inches. Both sexes 
incubate, and the birds while sitting on their eggs allowed of a very 
near approach, and before flying off disgorged the contents of their 
stomachs, chiefly a species of Clupea or herring. I need scarcely 
add that their bite is very severe. During our visits to Darnley 
Island I observed several tame Boobies among the native villages, 
generally perched on the canoes hauled up on the beach. These 
birds were allowed their full liberty, and after fishing in the weirs 
upon the reefs until they had procured a sufficiency of food, returned 
to the huts.” 
Inhabits the north coast. 
630. Sula piscator, Linn Yol. VII. PL 79. 
Inhabits the north coast. 
Family COLYMBIDAE. 
Genus Podiceps. 
There is no country of any extent wherein Grebes are not to be 
found ; and as their wing-powers are very limited they are mostly 
stationary. 
I have elsewhere remarked how beautifully the European Grebes 
