An Introduction to the study of zoology, illustrated by the crayfishD. Appleton, 1901 - 371 pagini |
Din interiorul cărții
Rezultatele 1 - 5 din 63
Pagina xi
... CANAL A GASTROLITH OR " CRAB'S EYE 28 28 ,, • 29 230 30 ATTACHMENT OF YOUNG TO SWIM- MERET OF MOTHER · · 41 • 53 STRUCTURE OF THE STOMACH LONGITUDINAL SECTION OF THE STO- MACH ROOF OF THE STOMACH , FROM WITHIN DISSECTION FROM THE SIDE ...
... CANAL A GASTROLITH OR " CRAB'S EYE 28 28 ,, • 29 230 30 ATTACHMENT OF YOUNG TO SWIM- MERET OF MOTHER · · 41 • 53 STRUCTURE OF THE STOMACH LONGITUDINAL SECTION OF THE STO- MACH ROOF OF THE STOMACH , FROM WITHIN DISSECTION FROM THE SIDE ...
Pagina 29
... canal , with the outline of the body ( nat . size ) : -a , vent ; ag , anterior gastric muscle ; bd , entrance of left bile duct ; eg , cervical groove ; ca , cæcum ; cpr , cardio - pyloric valve ; cs , cardiac portion of stomach ; the ...
... canal , with the outline of the body ( nat . size ) : -a , vent ; ag , anterior gastric muscle ; bd , entrance of left bile duct ; eg , cervical groove ; ca , cæcum ; cpr , cardio - pyloric valve ; cs , cardiac portion of stomach ; the ...
Pagina 50
... canal stretches from the mouth , at one end , to the vent at the other , and , at each of these limits , is continuous with the wall of the body , we may conceive the whole crayfish to be a hollow cylinder , the cavity of which is ...
... canal stretches from the mouth , at one end , to the vent at the other , and , at each of these limits , is continuous with the wall of the body , we may conceive the whole crayfish to be a hollow cylinder , the cavity of which is ...
Pagina 51
... canal , with its appendages ; by the apparatus for the distribution of nutriment ; and by two apparatuses for getting rid of those products . which are the ultimate result of the working of the whole organism . And here we must trench ...
... canal , with its appendages ; by the apparatus for the distribution of nutriment ; and by two apparatuses for getting rid of those products . which are the ultimate result of the working of the whole organism . And here we must trench ...
Pagina 55
... canal stretches from the mouth , at one end , to the vent at the other , and , at each of these limits , is continuous with the wall of the body , we may conceive the whole crayfish to be a hollow cylinder , the cavity of which is ...
... canal stretches from the mouth , at one end , to the vent at the other , and , at each of these limits , is continuous with the wall of the body , we may conceive the whole crayfish to be a hollow cylinder , the cavity of which is ...
Termeni și expresii frecvente
abdomen abdominal appendages abdominal somite acid alimentary ambulatory limbs animals antenna antennule aperture appears artery arthrobranchiæ Astacine attached basal joint base become blastomeres blood body branchiæ branchial cavity branchial chamber branchial filaments branchiostegite canal carapace cephalic cephalothorax cervical groove chitinous convex corpuscles coxopodite crayfish Crustacea cuticle cuticular division ecdysis ectoderm ectostracum edge endopodite endosternites epiblast epimeral epipodite exopodite exoskeleton external fact fibres food-yelk forceps front ganglion gastrolith gills gives rise green gland hind-gut hypoblast inner lamina lateral less lobes lobster longitudinal male mandibles maxillipede membrane metameres morphological muscles muscular Nauplius nerve nobilis nucleated cells nuclei organs outer ovum pairs plate pleura podobranchiæ portion posterior present procephalic protopodite region ridge rostrum scaphognathite segments seta setæ side somite species spines stem sternal sternum stomach structure substance surface telson tergal tergum terminal thoracic thoracic limbs thoracic somite tissue transverse wall yelk