An Introduction to the Study of Zoology, Illustrated by the CrayfishAppleton, 1906 - 371 pagini |
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Pagina xii
... CONNECTION BETWEEN THORAX AND 99 99 ABDOMEN • · · 151 39 . 99 " 9 29 40 . 99 99 " " 99 41 . 99 99 99 42 . 99 CEPHALOTHORACIC STERNA AND EN- DOPHRAGMAL SYSTEM • OPHTHALMIC AND ANTENNULARY SO- MITES . THE ROSTRUM • 153 156 • • 157 A ...
... CONNECTION BETWEEN THORAX AND 99 99 ABDOMEN • · · 151 39 . 99 " 9 29 40 . 99 99 " " 99 41 . 99 99 99 42 . 99 CEPHALOTHORACIC STERNA AND EN- DOPHRAGMAL SYSTEM • OPHTHALMIC AND ANTENNULARY SO- MITES . THE ROSTRUM • 153 156 • • 157 A ...
Pagina 54
... out , they return to their bent dis- position as soon as they are released . The upper end of the hinder middle piece ( pp ) is connected with 54 THE PHYSIOLOGY OF THE COMMON CRAYFISH . THE PHYSIOLOGY OF THE COMMON CRAYFISH THE MECHANISM.
... out , they return to their bent dis- position as soon as they are released . The upper end of the hinder middle piece ( pp ) is connected with 54 THE PHYSIOLOGY OF THE COMMON CRAYFISH . THE PHYSIOLOGY OF THE COMMON CRAYFISH THE MECHANISM.
Pagina 55
... connected together . A small , curved , calcified bar ( pc ) passes from the outer end of the front crosspiece downwards and outwards in the wall of the stomach , and its hinder and lower extremity is articulated with another larger bar ...
... connected together . A small , curved , calcified bar ( pc ) passes from the outer end of the front crosspiece downwards and outwards in the wall of the stomach , and its hinder and lower extremity is articulated with another larger bar ...
Pagina 56
... will be seen to form a sort of hexagonal frame , with more or less flexible joints at the angles , and having the anterior and the posterior sides connected by a bent jointed middle bar . As all. 56 THE PHYSIOLOGY OF THE COMMON CRAYFISH .
... will be seen to form a sort of hexagonal frame , with more or less flexible joints at the angles , and having the anterior and the posterior sides connected by a bent jointed middle bar . As all. 56 THE PHYSIOLOGY OF THE COMMON CRAYFISH .
Pagina 57
Thomas Henry Huxley. connected by a bent jointed middle bar . As all these parts are merely modifications of the hard skeleton , the apparatus is devoid of any power of moving itself . It is set in motion , however , by the same ...
Thomas Henry Huxley. connected by a bent jointed middle bar . As all these parts are merely modifications of the hard skeleton , the apparatus is devoid of any power of moving itself . It is set in motion , however , by the same ...
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