An Introduction to the Study of Zoology, Illustrated by the CrayfishAppleton, 1906 - 371 pagini |
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Pagina 13
... corresponding difference in their names . Leaving Astacus for the crayfishes , he proposed to change the technical name of the lobster into Homarus , by latin- ising the old French name " Omar , " or " Homar " ( now Homard ) , for that ...
... corresponding difference in their names . Leaving Astacus for the crayfishes , he proposed to change the technical name of the lobster into Homarus , by latin- ising the old French name " Omar , " or " Homar " ( now Homard ) , for that ...
Pagina 31
... corresponding part in a cooked lobster goes by the name of the " coral . " Beside these internal structures , the most noticeable are the large masses of flesh , or muscle , in the thorax and abdomen , and in the pincers ; which ...
... corresponding part in a cooked lobster goes by the name of the " coral . " Beside these internal structures , the most noticeable are the large masses of flesh , or muscle , in the thorax and abdomen , and in the pincers ; which ...
Pagina 57
... corresponding change of place . The muscles being now relaxed , the elasticity of the joints suffices to bring the whole apparatus back to its first position , when a new contraction brings about a new clashing of the teeth . Thus , by ...
... corresponding change of place . The muscles being now relaxed , the elasticity of the joints suffices to bring the whole apparatus back to its first position , when a new contraction brings about a new clashing of the teeth . Thus , by ...
Pagina 59
... corresponding surfaces of the floor are raised into longitudinal parallel ridges , the edge of each of which is fringed with very fine hairs . As everything which passes from the cardiac sac to the intestine must traverse this singular ...
... corresponding surfaces of the floor are raised into longitudinal parallel ridges , the edge of each of which is fringed with very fine hairs . As everything which passes from the cardiac sac to the intestine must traverse this singular ...
Pagina 61
... corresponding with a fold of the wall of the intestine , takes its rise , and passes , with a slight spiral twist , to its extremity ( hg ) . Each of these ridges is beset with small papillæ , and the chitinous lining is continued over ...
... corresponding with a fold of the wall of the intestine , takes its rise , and passes , with a slight spiral twist , to its extremity ( hg ) . Each of these ridges is beset with small papillæ , and the chitinous lining is continued over ...
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