A History of Crustacea: Recent MalacostracaD. Appleton, 1893 - 466 pagini |
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Pagina 18
... regions , where light and heat and vegetation , not to speak of cheerful society , must at the best be very scanty and extremely scarce . The very genus Ethusa , with its sub - genus or neighbouring genus Ethu- sina , seems to apologise ...
... regions , where light and heat and vegetation , not to speak of cheerful society , must at the best be very scanty and extremely scarce . The very genus Ethusa , with its sub - genus or neighbouring genus Ethu- sina , seems to apologise ...
Pagina 20
... regions of dense gloom , with a temperature icily cold , and under a column of water from two to three miles in height . Many species , indeed , of the Crustacea show a preference for a frigid climate , since where this condition ...
... regions of dense gloom , with a temperature icily cold , and under a column of water from two to three miles in height . Many species , indeed , of the Crustacea show a preference for a frigid climate , since where this condition ...
Pagina 29
... region of the Gulf Stream , to the north - east of the bank of Yucatan to the north of the Tortugas . Among the Amphipoda , none yet discovered reach more than about half the dimen- sions of this great Isopod . At the other end of the ...
... region of the Gulf Stream , to the north - east of the bank of Yucatan to the north of the Tortugas . Among the Amphipoda , none yet discovered reach more than about half the dimen- sions of this great Isopod . At the other end of the ...
Pagina 32
... region covered by the carapace . It is a matter of opinion whether the full number of true segments should be reckoned as twenty or twenty - one , since that which is called the telson , and which is regarded by many authors as the ...
... region covered by the carapace . It is a matter of opinion whether the full number of true segments should be reckoned as twenty or twenty - one , since that which is called the telson , and which is regarded by many authors as the ...
Pagina 52
... regions which roughly coincide with the positions of important internal organs . Along the centre lie the gastric , cardiac , and intestinal regions , respectively over the stomach , heart , and intes- tine . The hepatic regions over ...
... regions which roughly coincide with the positions of important internal organs . Along the centre lie the gastric , cardiac , and intestinal regions , respectively over the stomach , heart , and intes- tine . The hepatic regions over ...
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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 - 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.