A History of Crustacea: Recent MalacostracaD. Appleton, 1893 - 466 pagini |
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Pagina 36
... exopod and endopod will here be preferred - exopod for exopodite , endopod for endopodite and protopodite combined and peduncle will be used for a variable number of basal joints . In the first antennæ the peduncle consists , as already ...
... exopod and endopod will here be preferred - exopod for exopodite , endopod for endopodite and protopodite combined and peduncle will be used for a variable number of basal joints . In the first antennæ the peduncle consists , as already ...
Pagina 38
... exopod , when developed , as it gene- rally is in the Macrura , very commonly has the form of a thin plate known as the antennal scale , in Latin squama , while those who love long words are privileged to call it the scaphocerite . When ...
... exopod , when developed , as it gene- rally is in the Macrura , very commonly has the form of a thin plate known as the antennal scale , in Latin squama , while those who love long words are privileged to call it the scaphocerite . When ...
Pagina 39
... exopod . Since theoretically the exopod always arises from the second joint of an appendage , it is argued that the trunk of the mandible must represent the first joint . But to this it may be answered that the exceptional out- growth ...
... exopod . Since theoretically the exopod always arises from the second joint of an appendage , it is argued that the trunk of the mandible must represent the first joint . But to this it may be answered that the exceptional out- growth ...
Pagina 41
... exopod of the second.1 Professor Sars re- gards it as the exopod , 2 while Dr. Hansen considers that it springs from the third joint.3 In those Crustacea which have the branchiæ either not enclosed in a chamber or in one remote from the ...
... exopod of the second.1 Professor Sars re- gards it as the exopod , 2 while Dr. Hansen considers that it springs from the third joint.3 In those Crustacea which have the branchiæ either not enclosed in a chamber or in one remote from the ...
Pagina 42
... exopod are important both in size and function . 8. In regard to the eighth segment , a difficulty arises . as to how the appendages should best be designated . In some groups , such as the Amphipoda and Isopoda , they belong not only ...
... exopod are important both in size and function . 8. In regard to the eighth segment , a difficulty arises . as to how the appendages should best be designated . In some groups , such as the Amphipoda and Isopoda , they belong not only ...
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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
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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 - Correspondent of the Institute. With 148 Illustrations. $1.75. 46. THE ORGANS OF SPEECH AND THEIR APPLICATION IN THE FORMATION OF ARTICULATE SOUNDS. By GH VON MBYER, Professor in Ordinary of Anatomy at the University of Zurich.
Pagina ii - THE SENSES, INSTINCTS, AND INTELLIGENCE OF ANIMALS, WITH SPECIAL REFERENCE TO INSECTS. By Sir JOHN LUBBOCK.