Cancherizato, in the Italian music, a term signifying a piece of music that begins at the end, being the retrograde motion from the end of a song, &c. to the beginning.

Cancroma, or Boat-bill, in ornithology, a genus of birds belonging to the order of Gralla; the characters of which are: The bill is broad, with a keel along the middle; the nostrils are small, and lodged in a furrow; the tongue is small; and the toes are divided. There are two species:

1. The Cochlearia, or Crested Boat-bill, is of the size of a fowl; the length 22 inches. The bill is four inches long, and of a singular form, not unlike a boat with the keel uppermost, or, as some think, like the bowls of two spoons, placed with the hollow parts together; the upper mandible has a prominent ridge at the top, and on each side of this a long channel, at the bottom of which the nostrils are placed; these are oval, and situated obliquely; the general colour of the bill is dusky, or in some specimens dark brown; the skin between the under jaw capable of diffusion: from the hind head springs a long black creck, the feathers which compose it narrow, and end in a point; the middle ones are six inches in length, the others lessen by degrees, the outer ones being not more than one inch: between the bill and eye the skin is bare and dusky; the plumage on the forehead white; the rest of the bird of a pale bluish ash-colour; across the lower part of the neck behind is a transverse band of brownish black, which passes forwards on each side towards the breast, ending in a point, but does not encompass it: the fore part of the neck, and under parts, are bluish white, except the belly and thighs, which are rufous: the feathers which hang over the breast are loose, like those of the heron: the tail is three inches and a half long, and the wings, when closed, reach nearly to the end of it: the leg is three inches in length; and the thigh, from its insertion to the knee, four; the middle toe two inches and a half; the bare part above the knee one inch and a half; the colour of the bare parts yellowish brown; claws black: the toes are connected at the base by a membrane, which, as in the umbre, is deep in the outer one.—It inhabits Cayenne, Guiana, and Brazil; and chiefly frequents such parts as are near the water: in such places it perches on the trees which hang over the streams, and, like the kings-fisher, drops down on the fish which swim beneath. It has been thought to live on crabs likewise, whence the Linnaean name

2. The Cancroplaga, or Brown Boat-bill, a distinct species, according to Linnaeus, but which Mr Latham considers as only a variety, is of the size of the former; the head and crest the same; the upper parts, instead of ash-colour, are of a pale rufous brown; the tail rufous ash; and the under parts wholly of a cream colour; the bill and legs of a yellow brown. Its place and manners the same with those of the preceding.