RUFF, a bird so called from the very beautiful and remarkable frill of elongated feathers that, just before the breedingseason, grow thickly round the neck of the male, who is considerably larger than the female, known as the reeve.
The white frill is said to be the rarest, and birds exhibiting it have white necks even in winter.
From each side of his head sprouts a tuft of stiff curled feathers, while the feathers of the throat change colour, and beneath and around it sprouts the frill or ruff already mentioned as giving the bird his name.
The countess was now over sixty, was quite gray, and wore a cap with a frill that surrounded her face.
The cap has a narrow dependent margin or frill, as shown at G, and in section at x; this dependent frill originates in the rupture of a delicate continuous wrapper, which in the infancy of the mushroom entirely wraps the young plant; it is shown in its continuous state at j, and at the moment of rupture at K.
Bartlett, that every ruff assumes tufts and frill exactly the same in colour and markings as those he wore in the preceding season; and thus, polymorphic as is the male as a species, as an individual he is unchangeable.
It becomes visible when the polypide begins to protrude its tentacles, making its appearance through the orifice as a delicate hyaline frill through which the tentacles are pushed.
The adult plumage is of a uniform black, with the exception of a frill of white feathers nearly surrounding the base of the neck, and certain wing feathers which, especially in the male, have large patches of white.
Fastibilis; the difference in the nature of the attachment of the gills near the stem is seen at R, the absence of a true ring at s, and of a pendent frill at T.