barbule


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barbule

(bär′byo͞ol)
n. Zoology
A small barb or pointed projection, especially one of the small projections fringing the edges of the barbs of feathers.
References in periodicals archive ?
On the other hand, Stercorarius typically have very narrow, or much less expanded, pigmented nodes, and these nodes are visible throughout the entire length of the barbule (as opposed to mainly at the proximal portion, as in Larus).
The formation of the extended cavities in the medulla of rami derives from the degeneration of the central group of barb cells (medullary) that instead of accumulate the resistant feather keratin like the other barb cells (cortical) and barbule cells undergo a process of vacuolization (Matulionis, 1970; Alibardi, 2005a).
Barbs and barbules were sturdy and intact, color patterns were present, and feathers were durable and comparable to modern-day specimens.
The barbules and the alignment of melanosomes within them, Carney said, are identical to those found in modern birds.
The bluebird's blue is called a "structural color," caused when light is scattered and reflected by tiny structures within each feather's myriad microscopic barbules.
Ages later I let out that breath and the bird was still working, his dagger beak zipping up barbules, oiling his sheen, completely unperturbed by us watchers or the noisy baptism.
15E), relatively short labium, widely darkened base and apex of the antennal segment II, subhyaline but always spotted hemelytron, ventral longitudinal keel on the male genital segment, barbules on apical spine of the endosoma, 9-10 notches subtending the secondary gonopore (Fig.
Perianth bristles 6, some of them longer than the achene, reddish or stramineous at the base, curved, finely and irregularly ciliatebarbate, the barbules divergent to slightly ascendant on the upper part of the bristle and slightly retrorse at the lower part.
Cell structure of developing barbs and barbules in down feathers of the chick: Central role of barb ridge morphogenesis for the evolution of feathers.
His beak reseals the barbules by zipping them together.
Entre noviembre de 2000 y julio de 2002, en el embalse de la HU, se recolectaron entre 3 y 25 peces mensuales, para un total de 453, distribuidos en 115 pericos, 111 cacuchos, 108 yaluas, 89 mojarras amarillas, 11 moncholos, 10 barbules y 9 doncellas.