| 单词 | univalve |
| 例句 | Shell univalve, greatly depressed, broad, ear-shaped, the disk with many perforations. Zoological Illustrations, Volume II or Original Figures and Descriptions of New, Rare, or Interesting Animals 2012-04-19T02:00:34.283Z Shell univalve, turbinated, inversely conic, convolute; aperture longitudinal, narrow, not toothed; base effuse; spire very short. Zoological Illustrations, Volume I or Original Figures and Descriptions of New, Rare, or Interesting Animals 2012-04-19T02:00:27.027Z A genus of fossil univalve shells, believed to belong to the Heteropoda, peculiar to the Paleozoic age. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z On our way out, seawards, I came upon an immense univalve shell in about three or four feet of water. In Touch with Nature Tales and Sketches from the Life 2011-08-31T02:01:35.803Z But before we go further, it may be well to point out the names given to different parts of a univalve shell. Sea-Weeds, Shells and Fossils 2011-08-20T02:00:11.557Z But the limpet is univalve, and has a smooth shell; and the mussel has a united shell. The Deipnosophists, or Banquet of the Learned of Athen?us 2011-08-02T02:00:21.843Z Although this animal was sometimes seen dead without any covering, it was generally found contained in a thin and slightly elastic univalve shell of graceful form, and bearing some resemblance to an elegantly shaped boat. Sea Monsters Unmasked and Sea Fables Explained 2011-07-11T02:00:07.857Z And when the chambered shells, whose occupants were carnivorous, disappeared with the secondary period, numerous univalve mollusks were created to feed on other animals; although previously that family were herbivorous. The Religion of Geology and Its Connected Sciences 2011-02-28T03:00:28.890Z The second locality is near the convent of Bikeurby, where a stratum occurs containing numerous univalve shells of the genus Nerinœa, which being harder than the rock containing them, stand up on its weathered surface. The Thistle and the Cedar of Lebanon 2011-02-20T03:00:13.767Z There appear to be three varieties, spiral, univalve, and bivalve. The World and Its People: Book VII Views in Africa 2011-02-13T03:00:17.920Z Why is a snail called a univalve?Identify the head and mouth of the snail. A Guide for the Study of Animals 2011-01-18T03:00:14.913Z Although with the Mollusca sexual selection does not seem to have come into play; yet many univalve and bivalve shells, such as volutes, cones, scallops, &c., are beautifully coloured and shaped. The Descent of Man and Selection in Relation to Sex, Vol. I 2011-01-17T03:00:49.523Z I noticed also several univalve and bivalve shells of various sizes. Lachesis Lapponica A Tour in Lapland, Volume 1 2010-12-31T03:00:11.350Z It is divided into three groups, the multivalve shells, or those which consist of several pieces; the bivalve, of two pieces; and the univalve, or those of one piece only. Lives of Eminent Zoologists, from Aristotle to Linnæus with Introductory remarks on the Study of Natural History Before the study of shellfish, or molluscs, was conducted on the scientific principles of the present day, shells were classified as univalves, bivalves, and multivalves. Beautiful Shells of New Zealand An Illustrated Work for Amateur Collectors of New Zealand Marine Shells, with Directions for Collecting and Cleaning them But a great number of the bivalve Testacea, and many also of the turbinated univalves, burrow in sand or mud. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology The eggs of the univalve Mollusca are hardly less varied in the shapes they take. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 1 "Edwardes" to "Ehrenbreitstein" The bisected shell appeared to be a spinal univalve, resembling the familiar cephalopoda, nautilus, with thin septa dividing the many chambers. Made in Tanganyika The Japanese tops are of several kinds, some are made of univalve shells, filled with wax. Child-Life in Japan and Japanese Child Stories Saviour 16. stirrup 17. thorough-bass 18. vinaigrette 19. copal 20. univalve 21. A Spelling-Book for Advanced Classes These small bodies here represented, which bear a considerable resemblance to the fry of the univalve, or gasteropodous shells above mentioned, are so minute at first as to be just visible to the naked eye. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology A large univalve, used as a horn by pilots, fishermen, &c., in fogs: a strombus, triton, or sometimes a murex. The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. Indeed I have heard more than once that the famous "Pâte de Guimauve" owes its healing nutritive character to this despised univalve, which is said to enter largely into its composition. Wild Nature Won By Kindness The precious beads of shell, turkois, coral, or black stone, varied occasionally with small univalves from the ocean, are bound over all with a cotton cord. Zuñi Fetiches Second Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1880-1881, Government Printing Office, Washington, 1883, pages 3-45 The objects are generally made from large pear-shaped 450 sections of the lower whorl of marine univalves. Illustrated Catalogue of a Portion of the Collections Made During the Field Season of 1881 Third Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1881-82, Government Printing Office, Washington, 1884, pages 427-510 The multilocular or chambered univalves, including the Nautilus, and the corals, obtained from the limestones of these ancient groups, have been compared to forms now most largely developed in tropical seas. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology A name applied to the shells of the Haliotis—a univalve mollusc found clinging like limpets to rocks; very abundant in Guernsey. The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. A univalve shell frequently represented is of an oval shape, pointed at each end, with a longitudinal lip and a short spire at one extremity. Animal Figures in the Maya Codices When they call the deep-sea calves Home with wreathed univalves. Wandering Heath Shell beads discoidal and cylindrical in form, made chiefly from the columell� and walls of marine univalves. Illustrated Catalogue of a Portion of the Collections Made During the Field Season of 1881 Third Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1881-82, Government Printing Office, Washington, 1884, pages 427-510 The flesh of the ormer, when grilled, is something like a veal cutlet cooked in a fishy frying-pan, and I cannot say I was greatly enraptured with the uncommon univalve. Jethou or Crusoe Life in the Channel Isles The mother-of-pearl which lines some shells, both univalve and bivalve. The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. But such terms at best cannot be scientific, precise, determinate, as for examples the terms 'inorganic,' 'mammal,' 'univalve,' 'Old Red Sandstone' are scientific, precise, determinate. On the Art of Writing Lectures delivered in the University of Cambridge 1913-1914 Applied to the line where the whorls of a univalve shell join one another; also to the lines made upon the exterior of the shell of a chambered Cephalopod by the margins of the septa. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science A shell pin made from the columella of a large univalve. Illustrated Catalogue of a Portion of the Collections Made During the Field Season of 1881 Third Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1881-82, Government Printing Office, Washington, 1884, pages 427-510 A marshy place, at the mouth of a small stream, was tenanted by a curious wrinkled univalve, with a notch on the outer lip, Amphibola avellana of conchologists. Narrative of the Voyage of H.M.S. Rattlesnake, Commanded By the Late Captain Owen Stanley, R.N., F.R.S. Etc. During the Years 1846-1850. Including Discoveries and Surveys in New Guinea, the Louisiade Archipelago, Etc. to Which Is Added the Account of Mr. E.B. Kennedy's Expedition for the Exploration of the Cape York Peninsula. By John Macgillivray, F.R.G.S. Naturalist to the Expedition. — Volume 2 We believed the univalves had been chiefly described by him; one, or probably two of the species were not contained in his memoir. Personal Memoirs of a Residence of Thirty Years with the Indian Tribes on the American Frontiers The hill consisted of a red ferruguinous sandstone, in parts of which were imbedded univalve and bivalve shells, pieces of water-worn or burnt wood, and what seemed fragments of bone. Journal of an Expedition into the Interior of Tropical Australia Here I picked up four varieties of shells—two univalves and two bivalves—all very interesting from being quite unknown in the conchological world. What Led to the Discovery of the Source of the Nile It will not have abstract revolutionists, any more than it will have abstract butterflies, or bivalves, or univalves. The Philosophy of the Plays of Shakspere Unfolded Most species of univalves are wanderers, many bivalves are free, and multivalves become fixed at an early stage of existence. Tropic Days The whole of the univalves and bivalves received from Messrs. Schoolcraft and Douglass, have been assembled, and examined with all I possessed before, and with Mr. Stacy Collins's molluscas brought from Ohio. Personal Memoirs of a Residence of Thirty Years with the Indian Tribes on the American Frontiers It has long appeared to me that in the tropics as well as in the temperate zone the species of univalve shells are much more numerous than bivalves. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 3 This discovery is so much the more interesting, as it does not appear that any of these adhesive animals were ever before found in univalve shells. The History of Australian Exploration from 1788 to 1888 Taking it in your hand, you find it to be a univalve shell, the inhabitant of which is concealed behind a closely-fitting door, resembling a flake of undissolved glue. The Atlantic Monthly, Volume 02, No. 11, September, 1858 Bivalve and univalve mollusca seem to be rare at the greatest depths; but starfishes, sea urchins and other echinoderms, zoophytes, sponges, and protozoa abound. Discourses Biological and Geological Essays As to the Mollusca, which afford the most unbroken series of geological medals, the highest of that class, the Cephalopoda, abounded in older Silurian times, comprising several hundred species of chambered univalves. The Antiquity of Man It was easy to see that the stones are thin and porous opercula, which have formed part of small univalve shells. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 Some marine univalves can seal themselves inside with an operculum, which covers the open end of the shell like a trap door. Let's Collect Rocks and Shells They are all of living species; at least only one univalve, Paludina lenta, has any, and that a very doubtful, claim to be regarded as extinct. The Student's Elements of Geology The carbonate of lime is obviously derived from the shells; and common salt is so abundant in parts of the bed, that, as before remarked, the univalves are often filled with it. Geological Observations on South America Although with the Mollusca sexual selection does not seem to have come into play; yet many univalve and bivalve shells, such as volutes, cones, scallops, etc., are beautifully coloured and shaped. The Descent of Man There was one imported shell that we did not value much, it was so abundant—the freckled univalve they called a "prop." A New England girlhood, outlined from memory (Beverly, MA) Submerged sandbars are good spots to find several kinds of univalves and bivalves, but the latter will dig themselves quickly out of sight—as far down as several feet. Let's Collect Rocks and Shells The general absence of univalve mollusca in the white chalk is very marked. The Student's Elements of Geology Save the univalve's operculum and slice it off the muscle that holds it. Let's Collect Rocks and Shells The imbedded shells are chiefly casts, many of them of univalve mollusca, which are usually very rare in the white chalk of Europe. The Student's Elements of Geology Thus a cast such as a, Figure 51, commonly called a fossil screw, would never be suspected by an inexperienced conchologist to be the internal shape of the fossil univalve, b, Figure 51. The Student's Elements of Geology Your univalves will be more difficult; remove the animal with a crocket hook or other piece of bent wire, turning it gently with the spiral; try to get it out whole to save yourself trouble. Let's Collect Rocks and Shells Or, in the absence of these long-extinct forms, has a single spiral univalve, or species of Cretaceous Gasteropod, been found living? The Student's Elements of Geology |
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