| 单词 | Cephalopoda |
| 例句 | This phylum can be segregated into seven classes: Aplacophora, Monoplacophora, Polyplacophora, Bivalvia, Gastropoda, Cephalopoda, and Scaphopoda. Fundamentals of Biology 2015-01-01T00:00:00Z The division of Cephalopoda in which the arms are furnished with cupÐshaped suckers, as the cuttlefishes, squids, and octopus; the Dibranchiata. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z Figures of this and several of the following genera are given in the article Cephalopoda. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis" 2012-01-31T03:00:17.257Z The division of the foot into lobes is a simple case of that much greater elaboration or breaking up into processes and regions which it undergoes in the class Cephalopoda. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z In the Cephalopoda the foot is split or divided into eight segments in some families, and in others into ten segments, which radiate from the central head, like so many rays. Sea Monsters Unmasked and Sea Fables Explained 2011-07-11T02:00:07.857Z That this is, so to speak, a need of animals with localized respiratory organs is seen by the existence of provisions serving a similar purpose in other animals, e.g. the branchial hearts of the Cephalopoda. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3 "Apollodorus" to "Aral" The Scaphites and Crioceras are Cephalopoda, related to the Ammonites; but in this Lower Cretaceous period a remarkable development took place; many of the shells began to take curious forms, to unwind as it were. The Geological Story of the Isle of Wight The shell is usually light in substance or lightened by air-chambers in correlation with the free-swimming habits of the Cephalopoda. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" An extinct genus of the order of molluscous animals called Cephalopoda, having a long, straight, and chambered conical shell. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology "On some new and rare Cephalopoda," in the Transactions of the Zoological Society, April 20, 1880. Sea Monsters Unmasked and Sea Fables Explained 2011-07-11T02:00:07.857Z This diversity, indeed, is strikingly illustrated by the eggs of the Cephalopoda. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 1 "Edwardes" to "Ehrenbreitstein" The lower part of this division is the most fossiliferous, and contains various species of Ammonities, Turrilites, Nautilus, and other Cephalopoda. The Geological Story of the Isle of Wight In all Glossophorous Mollusca the lingual apparatus is supported by internal skeletal pieces, having the character of cartilage; but in the Cephalopoda such cartilage has a wider range. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" An extinct genus of the order of molluscous animals, called Cephalopoda, that inhabited a long-chambered conical shell, like a straight horn. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology Analogous powers exist in certain Crustacea and Cephalopoda. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" The contrivances for these purposes are sometimes wonderfully complex, as with the spermatophores of the Cephalopoda. The Variation of Animals and Plants Under Domestication, Volume II (of 2) A common marine animal of the genus Sepia, and class Cephalopoda. 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. Nervous System.—Nautilus, like the other Cephalopoda, exhibits a great concentration of the typical Molluscan ganglia, as shown in fig. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" Recent observation has shown that some at least are not Cephalopoda, as D'Orbigny supposed. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology The accurate knowledge which Aristotle exhibits of the anatomy and habits of marine animals, such as the Cephalopoda and the larger Crustacea, leaves no doubt that he derived it from actual observation. Fathers of Biology The foregoing remarks appear to apply to the case of the Mollusca, which, at a very early period, had reached a high organization and a great development of forms and species in the testaceous Cephalopoda. Contributions to the Theory of Natural Selection A Series of Essays An animal allied to the cuttle-fish, belonging to the class Cephalopoda; the calamary or Loligo of naturalists. 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. This organ has not been detected in other Cephalopoda. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" An extinct and very numerous genus of the order of molluscous animals called Cephalopoda, allied to the modern genus Nautilus, which inhabited a chambered shell, curved like a coiled snake. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology Professor Owen says, "Respecting the living habits of the Cephalopoda, Aristotle is more rich in detail than any other zoological author." Fathers of Biology Among many Cephalopoda and Cirripedia, and among certain of the Articulata, the female is larger than the male. Sex and Society Page 130 The last and highest group of the Mollusca—that of the Cephalopoda—is still represented only by Tetrabranchiate forms; but the abundance and variety of these is almost beyond belief. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science A distinctive feature of the Cephalopoda is their bilateral symmetry and the absence of anything like the torsion of the visceral mass seen in the Anisopleurous Gastropoda. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" An extinct genus of the order of molluscous animals, called Cephalopoda, of a thin lenticular shape, internally divided into small chambers. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology The Mollusks represent circulation; and his division of this type into classes, according to what he considers the higher or lower organization of the heart, agrees with the ordinary division into Acephala, Gasteropoda, and Cephalopoda. The Atlantic Monthly, Volume 09, No. 53, March, 1862 The third and highest class of Mollusks has been called Cephalopoda, in reference again to a special feature of their structure. The Atlantic Monthly, Volume 09, No. 52, February, 1862 The remains of Cephalopoda are far from uncommon in the Fig. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science The Cephalopoda are mainly characterized by the concrescence of the foot and head. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" For example, some Cuttle-fishes or Cephalopoda have eight arms or tentacles and others ten. Hormones and Heredity 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 The Cephalopoda are abundant, among which 40 species of Ammonites are now known, 10 being peculiar to this subdivision, and the rest common to the beds immediately above or below. The Student's Elements of Geology Having many chambers; applied to the shells of Foraminifera and Cephalopoda. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science The foot grows forward on each side so as to surround the mouth, the two upgrowths meeting on the dorsal side of the head—whence the name Cephalopoda. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" In the majority of zoological books in which Cephalopoda are described, nothing is said of the use or function of these two special arms. Hormones and Heredity Therefore, we may infer that the simplest forms of the Cephalopoda took precedence of the more complex in time. The Antiquity of Man These Cephalopoda, therefore, must, like the saurians, have been soon buried in sediment; for, if long exposed after death, the membrane containing the ink would have decayed. The Student's Elements of Geology The order of Cephalopoda characterised by the possession of four gills. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science The lobes of the fore-foot of Nautilus and of the other Cephalopoda require further description. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" These animals belong to the same division—the Cephalopoda—as the cuttle-fish, the squid, and the octopus. On the Method of Zadig French fishermen give them the name "cuckoldfish," and they belong to the class Cephalopoda, family Dibranchiata, consisting of themselves together with cuttlefish and argonauts. Twenty Thousand Leagues Under the Sea Beyond this superficial resemblance, there is hardly any real similarity between the eyes of cuttle-fish and vertebrates, as may be seen by consulting Hensen's admirable memoir on these organs in the Cephalopoda. The Origin of Species by means of Natural Selection, 6th Edition More important, however, than any of the preceding, are the Cephalopoda, represented, as before, exclusively by the chambered shells of the Tetrabranchiates. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science The renal sacs and renal glandular tissue are closely connected with the branchial advehent vessels in Nautilus and in the other Cephalopoda. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" To this day, the last representative of the Cephalopoda with partitioned shells, the Nautilus of the Southern Seas, remains faithful to the ancient design; it has not improved upon its distant predecessors. The Life of the Spider The typical osphradium is not present, except in Nautilus, but other organs are present in the cephalic region, to which an olfactory function is ascribed both in Nautilus and in the other Cephalopoda. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" Hence it is not a little difficult to decide how far even the same terms ought to be employed in describing the eyes of the Cephalopoda and Vertebrata. The Origin of Species by means of Natural Selection, 6th Edition Lastly, the order of the Cephalopoda, in both its Tetrabranchiate and Dibranchiate sections, undergoes a vast development in the Jurassic period. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science Coelom, Blood-vascular System and Excretory Organs.—Nautilus and the other Cephalopoda conform to the general Molluscan characters in regard to these organs. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" The males of nearly all Cephalopoda have been shown to be characterized by a peculiar modification of the arm-like processes or lobes of the fore-foot, connected with the copulative function. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" Hermaphroditism is unknown in Cephalopoda; male and female individuals always being differentiated. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" Architeuthis; this is the largest of Cephalopoda, reaching 60 ft. in length including arms. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" The Cephalopoda appear to be the only Invertebrates in which the egg is mesoblastic and telolecithal like that of Vertebrata. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" Possibly the sense of taste resides in certain processes within the mouth of Nautilus and other Cephalopoda. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" Accordingly, the correspondingly modified arms of other Cephalopoda are said to be hectocotylized. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" |
| 随便看 |
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。