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 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 ...
Pagina 43
... leg is seven . With a view to uniformity of nomenclature , the afflicted naturalist has for many years had to deal with these seven under the following names : -Coxa , basis , ischium , merus , carpus , propodus , dactylus , which ...
... leg is seven . With a view to uniformity of nomenclature , the afflicted naturalist has for many years had to deal with these seven under the following names : -Coxa , basis , ischium , merus , carpus , propodus , dactylus , which ...
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Termeni și expresii frecvente
adult Amphipoda animal Anomura apex appendages basal joint Beddard belong Brachyura branchiæ branchial branchial cavity Budde-Lund burrow carapace character chelate chelipeds claws crab Crustacea Cumacea Dana depth described developed distinct distinguished dorsal epipod exopod eye-stalks eyes Fabricius fathoms female fifth joint fifth pair flagella flagellum fourth joint Fritz Müller front genera genus Giard and Bonnier gnathopods Haan Herbst inch inner branch Isopoda Kröyer larvæ larval last pair Latreille Leach limbs Linn Macrura Malacostraca male mandibles margin maxillæ Mediterranean Miers Milne-Edwards Mysis narrow outer branch pair of legs pair of trunk-legs pairs of pleopods palp parasitic peduncle peræon peræopods plates pleon pleopods regions Risso rostrum rudimentary S. I. Smith Sars second antennæ second joint second maxillipeds setæ 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
Pasaje populare
Pagina 157 - I think this is as curious a case of instinct as ever I heard of, and likewise of adaptation in structure between two objects apparently so remote from each other in the scheme of nature, as a crab and a cocoa-nut tree.
Pagina i - Jelly-Fish, Star-Fish, and Sea-Urchins. Being a Research on Primitive Nervous Systems. By GJ Romanes.
Pagina i - WARNER, MD, Assistant Physician, and Lecturer on Botany to the London Hospital, etc. With 51 Illustrations. $1.75. 52. ANTHROPOID APES. By ROBERT HARTMANN, Professor in the University of Berlin. With 63 Illustrations. $1.75. New York : D. APPLETON & CO., 1, 3, & 5 Bon/l Street.