An Introduction to the Study of Zoology, Illustrated by the CrayfishAppleton, 1906 - 371 pagini |
Din interiorul cărții
Rezultatele 1 - 5 din 41
Pagina 18
... carapace ; r , rostrum ; t , t ' , the two divisions of the telson ; 1 , eye - stalks ; 2 , antennules ; 3 , antennæ ; 20 , lateral lobes of tail - fin ; XV - XX , somites of the abdomen . is a firm and solid front part , covered by.
... carapace ; r , rostrum ; t , t ' , the two divisions of the telson ; 1 , eye - stalks ; 2 , antennules ; 3 , antennæ ; 20 , lateral lobes of tail - fin ; XV - XX , somites of the abdomen . is a firm and solid front part , covered by.
Pagina 19
... carapace ; and a jointed hind part , commonly termed the tail ( fig . 2 ) . From the perception of a partially real , and partially fanciful , analogy with the regions into which the body is divided in the higher animals , the fore part ...
... carapace ; and a jointed hind part , commonly termed the tail ( fig . 2 ) . From the perception of a partially real , and partially fanciful , analogy with the regions into which the body is divided in the higher animals , the fore part ...
Pagina 24
... carapace . The reason of this is not far to seek . The lower edges of that part of the carapace which belongs to the thorax approach the bases of the legs pretty closely , but a cleft - like space is left ; and this cleft extends ...
... carapace . The reason of this is not far to seek . The lower edges of that part of the carapace which belongs to the thorax approach the bases of the legs pretty closely , but a cleft - like space is left ; and this cleft extends ...
Pagina 25
... carapace is called the branchiostegite ( fig . 1 , bg ) , because it covers the gills or branchia ( fig . 4 ) , which are now exposed . They have the appear- ance of a number of delicate plumes , which take a direc- tion from the bases ...
... carapace is called the branchiostegite ( fig . 1 , bg ) , because it covers the gills or branchia ( fig . 4 ) , which are now exposed . They have the appear- ance of a number of delicate plumes , which take a direc- tion from the bases ...
Pagina 27
... carapace is removed in a crayfish which has been just killed , the heart is seen still pulsating . It is an organ of considerable relative size ( fig . 5 , h ) , which is situated immediately beneath the 99- ag aa es xmm oa -Pg Ir t -aa ...
... carapace is removed in a crayfish which has been just killed , the heart is seen still pulsating . It is an organ of considerable relative size ( fig . 5 , h ) , which is situated immediately beneath the 99- ag aa es xmm oa -Pg Ir t -aa ...
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