United States or Micronesia ? Vote for the TOP Country of the Week !
It is almost needless to say that these objects really were the plumose and flexible cirri which the barnacles throw out to catch their food with, and which lie, like a tiny feather-brush, just within the valves of the shell, when the creature is dead.
I confess I was appalled when I cast my eye upon the title of the manuscript, "Cirri and Nebulae." Oh! oh! I said, that will never do. People don't know what Cirri are, at least not one out of fifty readers. "Wind-Clouds and Star-Drifts" will do better than that. Anything you like, he answered, what difference does it make how you christen a foundling?
The carapace of the Cirripedes becomes converted, as is well-known, into a peculiar test, on account of which they were formerly placed among the Mollusca, and the natatory feet grow into long cirri, which whirl nourishment towards the mouth, which is now open.
The cloud-like aspect of large parts of the Galaxy must always have attracted attention, even from naked-eye observers, but the true star-clouds were first satisfactorily represented in Barnard's photographs. The resemblance to actual clouds is often startling. Some are close-packed and dense, like cumuli; some are wispy or mottled, like cirri.
Its carapace is but slightly compressed laterally and hairy, as in Sacculina purpurea; the adherent feet are of considerable size, and the natatory feet are wanting, as, in the adult animal, are the corresponding cirri. As I learn from Mr. Powell in the Mauritius. Eggs of Tetraclita porosa in segmentation, magnified 90 diam.
During the afternoon thin cirri clouds, flying very high, spread out over the western heavens like a fan. As the day lengthened they thickened to resemble the scales of a fish, bringing to mind the old saying, "A mackerel sky and a mare's tail," etc. The signs were all unmistakable, and even the gulls recognized a change, and, screaming, sought shelter on our spars. Mr.
To the cloud-forms modelled out of formlessness the winds gave life of motion, sunshine gave life of light, and they hastened through the lower atmosphere, or sailed lingering across the blue breadths of mid-heaven, or dwelt peacefully aloft in the region of the cirri; and whether trailing gauzy robes in flight, or moving stately, or dwelling on high where scope of vision makes travel needless, they were still the brightest, the gracefullest, the purest beings that Earth creates for man's most delicate pleasure.
The sequence of the sections of the body in order of time seems originally to have been, that first the fore-body, then the hind-body, and finally the middle-body was formed. This is a circumstance which renders very doubtful the equivalence of the middle-body of the Malacostraca with the section of the body which in the Copepoda bears the swimming feet and in the Cirripedia the cirri.
All the brown rings bristle with short, sparse hairs. The anal segment, which is narrower than the rest, bears at the tip two long cirri, very fine, slightly waved and almost as long as the whole abdomen.
To-day as I was opening a specimen of Lepas anatifera in order to compare the animal with the description in Darwin's 'Monograph on the Subclass Cirripedia, I found in the shell of this Cirripede, a blood-red Annelide, with a short, flat body, about half an inch long and two lines in breadth, with twenty-five body-segments, and without projecting setigerous tubercles or jointed cirri.
Word Of The Day