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 . Professor Sars re- gards it as the exopod , 2 while Dr. Hansen considers that it springs from the third joint . In those Crustacea which have the branchiæ either not enclosed in a chamber or in one remote from the ...
... exopod of the second . Professor Sars re- gards it as the exopod , 2 while Dr. Hansen considers that it springs from the third joint . 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 in ...
... 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 in ...
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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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