An Introduction to the Study of Zoology, Illustrated by the CrayfishAppleton, 1906 - 371 pagini |
Din interiorul cărții
Rezultatele 1 - 5 din 64
Pagina vii
... secure the foundation of the whole of biological science . In the Appendix , I have added a few notes re- specting points of detail with which I thought it unnecessary to burden the text ; and , under the PREFACE . vii.
... secure the foundation of the whole of biological science . In the Appendix , I have added a few notes re- specting points of detail with which I thought it unnecessary to burden the text ; and , under the PREFACE . vii.
Pagina 32
... whole of the old coat of the body is thrown off at once , and suddenly ; and the new coat , which has , in the meanwhile , been formed beneath the old one , remains soft for a time , and allows of a rapid increase in the dimensions of ...
... whole of the old coat of the body is thrown off at once , and suddenly ; and the new coat , which has , in the meanwhile , been formed beneath the old one , remains soft for a time , and allows of a rapid increase in the dimensions of ...
Pagina 37
... whole , of it remaining in the exuviæ . But it is not only in this way that crayfishes part with their limbs . At all times , if the animal is held by one of its pincers , so that it cannot get away , it is apt to solve the difficulty ...
... whole , of it remaining in the exuviæ . But it is not only in this way that crayfishes part with their limbs . At all times , if the animal is held by one of its pincers , so that it cannot get away , it is apt to solve the difficulty ...
Pagina 40
... whole winter . In late spring - time , or early summer , the young burst the thin shell of the egg , and , when they are hatched , present a general re- semblance to their parente . This is very unlike what takes place in crabs and ...
... whole winter . In late spring - time , or early summer , the young burst the thin shell of the egg , and , when they are hatched , present a general re- semblance to their parente . This is very unlike what takes place in crabs and ...
Pagina 50
... whole crayfish to be a hollow cylinder , the cavity of which is everywhere closed , though it is traversed by a tube , open at each end ( fig . 6 ) . The shut cavity between the tube and the walls of the cylinder may be termed the ...
... whole crayfish to be a hollow cylinder , the cavity of which is everywhere closed , though it is traversed by a tube , open at each end ( fig . 6 ) . The shut cavity between the tube and the walls of the cylinder may be termed the ...
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