A History of Crustacea: Recent MalacostracaD. Appleton, 1893 - 466 pagini |
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Pagina 35
... flagella or lashes , composed of many joints or few , the inner or secondary flagellum being not unfre- quently absent altogether or rudimentary . In some in- stances , and in the Amphipoda Caprellidea and in the Entomostracan Copepoda ...
... flagella or lashes , composed of many joints or few , the inner or secondary flagellum being not unfre- quently absent altogether or rudimentary . In some in- stances , and in the Amphipoda Caprellidea and in the Entomostracan Copepoda ...
Pagina 36
... flagellum is the true endopod , and that the secondary flagellum is an independent outgrowth . For the reasons mentioned , and some others , Dr. J. E. V. Boas considers that the first antennæ are not homologous with the following limbs ...
... flagellum is the true endopod , and that the secondary flagellum is an independent outgrowth . For the reasons mentioned , and some others , Dr. J. E. V. Boas considers that the first antennæ are not homologous with the following limbs ...
Pagina 37
... flagellum of the upper antennæ is frequently furnished with a number of smooth setæ or filaments , which were at one time described as auditory cilia , though there was nothing to support this guess at their function , and though the ...
... flagellum of the upper antennæ is frequently furnished with a number of smooth setæ or filaments , which were at one time described as auditory cilia , though there was nothing to support this guess at their function , and though the ...
Pagina 38
... flagellum divides at some distance from its base into two branches . In the Squillidæ , also , there are three flagella . 3. The third segment carries the outer , under , or second antennæ , sometimes called simply the antennæ in ...
... flagellum divides at some distance from its base into two branches . In the Squillidæ , also , there are three flagella . 3. The third segment carries the outer , under , or second antennæ , sometimes called simply the antennæ in ...
Pagina 55
... flagella of the second antennæ are not greatly elongated . The seventh joint in the walking - legs is generally unarmed . It is either stiliform or in the last pair expanded into an ovate swimming organ . The species are marine or ...
... flagella of the second antennæ are not greatly elongated . The seventh joint in the walking - legs is generally unarmed . It is either stiliform or in the last pair expanded into an ovate swimming organ . The species are marine or ...
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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.