| 单词 | suctorial |
| 例句 | Biting mandibles; second maxillae incompletely or completely fused; often forming a suctorial proboscis. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4 "Hero" to "Hindu Chronology" 2012-04-04T02:00:56.447Z A group of suctorial Infusoria, which in the adult stage are stationary. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z By means of the suctorial mouth, stones are removed from more or less circular area so as to form a shallow excavation. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis" 2012-01-31T03:00:17.257Z There are, however, peculiar difficulties in those cases in which, as among the Lepidoptera, the same species is mandibulate as a larva, and suctorial as an imago. On the Origin and Metamorphoses of Insects 2011-12-05T03:00:46.667Z They have a well-developed proboscis which is used as a suctorial organ; some are abyssal, but the majority are either commensals or parasites of Echinoderms. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z Dis�tomum, a genus of trematode or suctorial parasitic worms or flukes, infesting various parts in different animals. The New Gresham Encyclopedia Volume 4, Part 1: Deposition to Eberswalde 2011-04-14T02:00:57.977Z The organs of the mouth take collectively two typical forms, the masticatory and the suctorial, the former exemplified by the beetles, the latter by the butterflies, in which the mouth is purely for suction. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z The mouth is minute and the pharynx is always suctorial, never gizzard-like. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3 "Apollodorus" to "Aral" Against this claim much negative evidence was considered and the final conclusion was "that suctorial insects do not come under consideration in connection with the spread of plague." Insects and Diseases A Popular Account of the Way in Which Insects may Spread or Cause some of our Common Diseases The last three families constitute the sub-tribe Porostomata, characterized by the reduction of the buccal mass, which is modified into a suctorial apparatus. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z The older entomologists divided insects into haustellate or suctorial, and mandibulate or biting insects, the butterfly being an example of one, and the beetle serving to illustrate the other category. Our Common Insects A Popular Account of the Insects of Our Fields, Forests, Gardens and Houses In the same place the suctorial Entomostraca are added as examples of the difficulty of recognising the type. The Foundations of the Origin of Species Two Essays written in 1842 and 1844 Alimentary Canal and Gastric Glands.—The alimentary canal in Scorpio, as in Limulus, is provided with a powerful suctorial pharynx, in the working of which extrinsic muscles take a part. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3 "Apollodorus" to "Aral" Fleas or other suctorial insects feeding on such rats take myriads of these bacilli into their stomach and get many on their proboscis. Insects and Diseases A Popular Account of the Way in Which Insects may Spread or Cause some of our Common Diseases Pharynx suctorial; branchiae surrounding the body, between the mantle and foot. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z And to omit a number of instances, in the suctorial Hemiptera or bugs we have different grades of structure in the mouth-parts. Our Common Insects A Popular Account of the Insects of Our Fields, Forests, Gardens and Houses Stones and pebbles, gripped in the suctorial mouth, are removed from a selected spot and piled around the circumference, so that the eggs, which are laid within the circle, are not easily washed away. The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told All Arachnida, including Limulus, feed by suctorial action in essentially the same way as Scorpio. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3 "Apollodorus" to "Aral" In these pages the Commission considers the question of the transference of plague by suctorial insects. Insects and Diseases A Popular Account of the Way in Which Insects may Spread or Cause some of our Common Diseases In certain insects they are not used as jaws, but may form suctorial organs. The Gutenberg Webster's Unabridged Dictionary Section M, N, and O It has a suctorial mouth, with labial appendages, and a single pair of gill openings. The Gutenberg Webster's Unabridged Dictionary Section F, G and H It is called by Mr. Swainson the suctorial, from a very generally prevalent peculiarity, that of drawing sustenance by suction. Vestiges of the Natural History of Creation Muscular fibres connected with the suctorial pharynx are in Limulus inserted into the entosternite, and the activity of the two organs may be correlated. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3 "Apollodorus" to "Aral" It considers Simonds' claims and others and believes that "suctorial insects do not come under consideration with the spread of plague." Insects and Diseases A Popular Account of the Way in Which Insects may Spread or Cause some of our Common Diseases It seems that this habit was very widespread among the earlier Vertebrates; the larvae of many of the Ganoids and frogs have suctorial disks near the mouth. The Evolution of Man — Volume 2 In the paddles of the gigantic extinct sea-lizards, and in the mouths of certain suctorial crustaceans, the general pattern seems thus to have become partially obscured. The Origin of Species by means of Natural Selection, 6th Edition To the aquatic type his love of maritime adventure very readily assimilates him; and how far the suctorial is represented in his nature it is hardly necessary to say. Vestiges of the Natural History of Creation In the paddles of the extinct gigantic sea-lizards, and in the mouths of certain suctorial crustaceans, the general pattern seems to have been thus to a certain extent obscured. On the Origin of Species By Means of Natural Selection, or, the Preservation of Favoured Races in the Struggle for Life |
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