An Introduction to the Study of Zoology, Illustrated by the CrayfishAppleton, 1906 - 371 pagini |
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... contains , will find himself brought face to face with all the great zoological questions which excite so lively an interest at the present day ; he will understand the method by which alone we can hope to attain to satisfactory answers ...
... contains , will find himself brought face to face with all the great zoological questions which excite so lively an interest at the present day ; he will understand the method by which alone we can hope to attain to satisfactory answers ...
Pagina 17
... contain lime . In fact the exoskeleton is composed of a peculiar animal matter , so much impregnated with carbonate and phosphate of lime that it becomes dense and hard . It will be observed that the body of the crayfish is naturally ...
... contain lime . In fact the exoskeleton is composed of a peculiar animal matter , so much impregnated with carbonate and phosphate of lime that it becomes dense and hard . It will be observed that the body of the crayfish is naturally ...
Pagina 24
... contain the organs of hear- ing ; while , at the ends of the eyes talks , are the organs of vision . Thus we see that the crayfish has a jointed and segmented body , the rings of which it is composed being ' very obvious in the abdomen ...
... contain the organs of hear- ing ; while , at the ends of the eyes talks , are the organs of vision . Thus we see that the crayfish has a jointed and segmented body , the rings of which it is composed being ' very obvious in the abdomen ...
Pagina 31
... contain , and which , like the exoskeleton , turn red when they are boiled . The corresponding part in a cooked lobster goes by the name of the " coral . " Beside these internal structures , the most noticeable are the large masses of ...
... contain , and which , like the exoskeleton , turn red when they are boiled . The corresponding part in a cooked lobster goes by the name of the " coral . " Beside these internal structures , the most noticeable are the large masses of ...
Pagina 49
... containing a peculiar nitrogenous body , termed protein , under one of its many forms , such as albumen , fibrin , and the like . With this may be associated fatty matters , starchy and sac- charine bodies , and various earthy salts ...
... containing a peculiar nitrogenous body , termed protein , under one of its many forms , such as albumen , fibrin , and the like . With this may be associated fatty matters , starchy and sac- charine bodies , and various earthy salts ...
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