A History of Crustacea: Recent MalacostracaD. Appleton, 1893 - 466 pagini |
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Pagina 3
... legs , and when the eggs are laid they are usually carried about not by the mother but in packets upon the oviferous feet of the male . The Insecta are so strikingly distinguished by the special number of their legs that this class ...
... legs , and when the eggs are laid they are usually carried about not by the mother but in packets upon the oviferous feet of the male . The Insecta are so strikingly distinguished by the special number of their legs that this class ...
Pagina 4
... legs on the thorax , and usually also on the abdomen . ' This is compendious and useful . The statements clearly exclude all the other classes of the Arthropoda . They are also widely applicable among crus- taceans ; yet of these ...
... legs on the thorax , and usually also on the abdomen . ' This is compendious and useful . The statements clearly exclude all the other classes of the Arthropoda . They are also widely applicable among crus- taceans ; yet of these ...
Pagina 27
... legs , and a carapace which seldom if ever exceeds twelve inches in either length or breadth . The fossil Trilobites , which compose the third order of the Gigantostraca , include indeed many species of incon- siderable size , but they ...
... legs , and a carapace which seldom if ever exceeds twelve inches in either length or breadth . The fossil Trilobites , which compose the third order of the Gigantostraca , include indeed many species of incon- siderable size , but they ...
Pagina 34
... legs of one set are elsewhere adapted for swim- ming . There are also other functions conjugal or maternal in which the swimming legs or the walking legs may take part , while the breathing apparatus , simple or complicated , may be ...
... legs of one set are elsewhere adapted for swim- ming . There are also other functions conjugal or maternal in which the swimming legs or the walking legs may take part , while the breathing apparatus , simple or complicated , may be ...
Pagina 40
... legs or modified legs will strike a casual observer as rather strained in its application to the mandibles . That a crab should adapt the basal joints of a pair of limbs for masticating its food may seem as unlikely and absurd as that a ...
... legs or modified legs will strike a casual observer as rather strained in its application to the mandibles . That a crab should adapt the basal joints of a pair of limbs for masticating its food may seem as unlikely and absurd as that a ...
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Termeni și expresii frecvente
adult Amphipoda animal Anomura apex appendages basal joint Bate and Westwood Beddard belong Brachyura branchiæ branchial branchial cavity Budde-Lund carapace character chelate chelipeds crab Crustacea Cumacea Dana described developed distinct distinguished Dollfus dorsal epipod exopod eye-stalks eyes Fabricius fathoms female fifth joint fifth pair five pairs flagella flagellum Fritz Müller front genera genus Giard and Bonnier gnathopods Haan inch inner branch Isopoda Kossmann Kröyer larvæ larval last pair Latreille Leach limbs Linn Macrura Malacostraca male mandibles margin maxillæ Miers Milne-Edwards Mysis outer branch pair of legs pair of trunk-legs pairs of pleopods palp parasitic peduncle peræon peræopods pleon pleopods preceding Risso rostrum rudimentary S. I. Smith Sars second antennæ second joint second maxillipeds setæ seventh joint short side sixth segment slender specimens Spence Bate spines Stimpson sub-order telson terminal joint third maxillipeds three pairs three-jointed tribe trunk two-jointed type species uropods ventral
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Pagina i - Heredity." $1.50. 42. ANTS, BEES, AND WASPS. A Record of Observations of the Habits of the Social Hymenoptera. By Sir JOHN LUBBOCK, Bart., FRS, DCL, LL.D., etc.
Pagina ii - The Historical Method," etc. $1.75. 55. EARTHQUAKES AND OTHER EARTH MOVEMENTS. By JOHN MILNE, Professor of Mining and Geology in the Imperial College of Engineering, Tokio, Japan. With 38 Figures. $1.75.