An Introduction to the Study of Zoology, Illustrated by the CrayfishAppleton, 1906 - 371 pagini |
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Pagina 18
... cavities ; cg , cervical groove ; these letters are placed on the 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 ...
... cavities ; cg , cervical groove ; these letters are placed on the 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 ...
Pagina 25
... cavity is bounded , on the inner side , by a sloping wall , formed by a delicate , but more or less calcified layer of the exoskeleton , which constitutes the proper outer wall of the thorax . At the upper limit of the branchial cavity ...
... cavity is bounded , on the inner side , by a sloping wall , formed by a delicate , but more or less calcified layer of the exoskeleton , which constitutes the proper outer wall of the thorax . At the upper limit of the branchial cavity ...
Pagina 29
... medicine as sovereign remedies for all sorts of disorders . These bodies ( fig . 7 ) are smooth and flattened , or concave , on the side which is turned towards 4 the cavity of the stomach ; while the opposite side THE 29 CRABS ' - EYES . "
... medicine as sovereign remedies for all sorts of disorders . These bodies ( fig . 7 ) are smooth and flattened , or concave , on the side which is turned towards 4 the cavity of the stomach ; while the opposite side THE 29 CRABS ' - EYES . "
Pagina 30
Thomas Henry Huxley. the cavity of the stomach ; while the opposite side , being convex and rough with irregular prominences , is some- thing like a " brain - stone " coral . Moreover , when the stomach is laid open , three large D Α B C ...
Thomas Henry Huxley. the cavity of the stomach ; while the opposite side , being convex and rough with irregular prominences , is some- thing like a " brain - stone " coral . Moreover , when the stomach is laid open , three large D Α B C ...
Pagina 38
... cavity of the limb is less patent , and its sides more readily fall together ; and , as we have seen , the pincers are usually cast off at their narrowest point . When such amputation has taken place , a crust , probably formed of ...
... cavity of the limb is less patent , and its sides more readily fall together ; and , as we have seen , the pincers are usually cast off at their narrowest point . When such amputation has taken place , a crust , probably formed of ...
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