An Introduction to the Study of Zoology, Illustrated by the CrayfishAppleton, 1906 - 371 pagini |
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Pagina 5
... similar to little lobsters , except that they are usually of a dull , greenish or brownish colour , generally diversified with pale yellow on the under side of the body , and some- times with red on the limbs . In rare cases , their ...
... similar to little lobsters , except that they are usually of a dull , greenish or brownish colour , generally diversified with pale yellow on the under side of the body , and some- times with red on the limbs . In rare cases , their ...
Pagina 16
... similar to one another that they bear the common surname of Astacus . One kind , by way of distinction , is called fluviatile , another slender - handed , another Dauric , from the region in which it lives ; and these double names are ...
... similar to one another that they bear the common surname of Astacus . One kind , by way of distinction , is called fluviatile , another slender - handed , another Dauric , from the region in which it lives ; and these double names are ...
Pagina 42
... similar manner.t Jonston , who wrote in the middle of the seventeenth century , says that the little crayfish are often to be seen adhering to the tail of the mother . Roesel's observations imply the same thing ; but he does not ...
... similar manner.t Jonston , who wrote in the middle of the seventeenth century , says that the little crayfish are often to be seen adhering to the tail of the mother . Roesel's observations imply the same thing ; but he does not ...
Pagina 43
... similar to the parent , does not quite " resemble it in all respects , " as Roesel says . For not only are the first and the last pairs of abdominal limbs wanting , while the telson is very different from that of the adult ; but the ...
... similar to the parent , does not quite " resemble it in all respects , " as Roesel says . For not only are the first and the last pairs of abdominal limbs wanting , while the telson is very different from that of the adult ; but the ...
Pagina 44
... similar to those found in our English rivers , that is to say , of the species Astacus fluviatilis , are met with in Ireland , and on the Continent , as far south as Italy and northern Greece ; as far east as western Russia ; and as far ...
... similar to those found in our English rivers , that is to say , of the species Astacus fluviatilis , are met with in Ireland , and on the Continent , as far south as Italy and northern Greece ; as far east as western Russia ; and as far ...
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