>Jackass</i>).

Pied B.--
<i>C. picatus</i>, Gould.

Rufous B.--
<i>C. rufescens</i>, De Vis.

Silver-backed B.--
<i>C. argenteus</i>, Gould.

Spalding's B.--
<i>C. spaldingi</i>, Masters.

White-winged B.--
<i>C. leucopterus</i>, Cav.

The bird is sometimes called a <i>Crow-shrike</i>.

1827. Vigors and Horsfield, `Transactions of Linnaean Society,'
vol. xv. p. 213:

"Mr. Caley observes--Butcher-bird. This bird used frequently
to come into some green wattle-trees near my house, and in wet
weather was very noisy; from which circumstance it obtained the
name of `Rain-bird.'"

1848. J. Gould, `Birds of Australia,' vol. ii. Pl. 52:

"<i>Cracticus Destructor</i>. Butcher Bird, name given by
colonists of Swan River, a permanent resident in New South
Wales and South Australia. I scarcely know of any Australian
bird so generally dispersed."

1885. H. Finch-Hatton, `Advance Australia,' p. 50:

"Close to the station one or two butcher-birds were piping
their morning song, a strange little melody with not many
notes, which no one who has heard it will ever forget."

<hw>Buttercup</hw>, <i>n</i>. The familiar English flower is
represented in Australia and Tasmania by various species of
<i>Ranunculus</i>, such as <i>R. lappaceus</i>, Sm.,
<i>N.O. Ranunculaceae</i>.

<hw>Butter-fish</hw>, <i>n</i>. a name given in Australia to
<i>Oligorus mitchellii</i>, Castln. (see <i>Murray Perch</i>);
in Victoria, to <i>Chilodactylus nigricans</i>, Richards. (see
<i>Morwong</i>); in New Zealand, to <i>Coridodax pullus</i>,
Forst., called also <i>Kelp-fish</i>. The name is in allusion
to their slippery coating of mucus. See <i>Kelp-fish</i>.

1850. J. B. Clutterbuck, `Port Phillip,' vol. iii. p. 44:

"In the bay are large quantities of . . . butter-fish."

1880. Guenther, `Study of Fishes,' p. 533:

"The `butter-fish,' or `kelp-fish' of the colonists of New
Zealand (<i>C. pullus</i>), is prized as food, and attains to a
weight of four or five pounds."

<hw>Butterfly-conch</hw>, <i>n</i>. Tasmanian name for a marine
univalve mollusc, <i>Voluta papillosa</i>, Swainson.

<hw>Butterfly-fish</hw>, <i>n</i>. a New Zealand sea-fish,
<i>Gasterochisma melampus</i>, Richards., one of the
<i>Nomeidae</i>. The ventral fins are exceedingly broad and
long, and can be completely concealed in a fold of the abdomen.
The New Zealand fish is so named from these fins; the European
Butterfly-fish, <i>Blennius ocellari