An Introduction to the Study of Zoology, Illustrated by the CrayfishAppleton, 1906 - 371 pagini |
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Pagina 1
... or that the mode of investigation which yields such wonderful results to the scientific inves tigator , is different in kind from that which is employed for the commonest purposes of everyday existence . Common sense CHAPTER.
... or that the mode of investigation which yields such wonderful results to the scientific inves tigator , is different in kind from that which is employed for the commonest purposes of everyday existence . Common sense CHAPTER.
Pagina 16
... kind , by way of distinction , is called fluviatile , another slender - handed , another Dauric , from the region in which it lives ; and these double names are rendered by Astacus fluviatilis , Astacus leptodactylus , and Astacus ...
... kind , by way of distinction , is called fluviatile , another slender - handed , another Dauric , from the region in which it lives ; and these double names are rendered by Astacus fluviatilis , Astacus leptodactylus , and Astacus ...
Pagina 39
... kind by means of eggs the co - operation of the males with the females is necessary . On the basal joint of the hindermost pair of legs of the male a small aperture is to be seen ( fig . 3 , A ; vd ) . In these , the ducts of the ...
... kind by means of eggs the co - operation of the males with the females is necessary . On the basal joint of the hindermost pair of legs of the male a small aperture is to be seen ( fig . 3 , A ; vd ) . In these , the ducts of the ...
Pagina 40
... to the swimmerets of the mother , and are carried about , protected by her abdomen , as in a kind of nursery . That most careful naturalist , Roesel von Rosenhof , says 40 THE NATURAL HISTORY OF THE COMMON CRAYFISH .
... to the swimmerets of the mother , and are carried about , protected by her abdomen , as in a kind of nursery . That most careful naturalist , Roesel von Rosenhof , says 40 THE NATURAL HISTORY OF THE COMMON CRAYFISH .
Pagina 47
... kind similar to those which their own ingenuity effects through mechanical contrivances , are brought about . They observed that animals perform various actions ; and , when they looked into the disposition and the powers of the parts ...
... kind similar to those which their own ingenuity effects through mechanical contrivances , are brought about . They observed that animals perform various actions ; and , when they looked into the disposition and the powers of the parts ...
Alte ediții - Afișează-le pe toate
An Introduction to the Study of Zoology, Illustrated by the Crayfish Thomas Henry Huxley Vizualizare completă - 1895 |
An Introduction to the Study of Zoology, Illustrated by the Crayfish Thomas Henry Huxley Vizualizare completă - 1902 |
Termeni și expresii frecvente
abdomen abdominal appendages abdominal somites ambulatory limbs Amurland animals antenna antennule aperture appears artery arthrobranchiæ Astacine Astacus fluviatilis Astacus torrentium attached basal joint blastomeres blood body branchiæ branchial cavity carapace cardiac cavity cephalothorax cervical groove chelate chitinous corpuscles coxopodite cray Crustacea cuticle cuticular division ecdysis Écrevisses edge endopodite English crayfish epiblast epipodite exopodite exoskeleton eye-stalk fact female filaments fluviatilis.-A forceps front ganglia ganglion gastrolith gills give rise green gland hind-gut hinder hypoblast Illustrations inner integument lateral leptodactylus less lobster longitudinal male mid-gut middle modified morphological muscle muscular nerve fibres nobilis noble crayfish nucleated cells nuclei organs ossicle outer pairs plate pleura podobranchiæ portion posterior prawns present region ridge rostrum segments septal lines setæ side somite species spermatozoa spines sternal sternum stomach structure substance surface swimmerets telson tergal tergum terminal thoracic thoracic limbs thoracic somite tissue transverse wall yelk zone