An Introduction to the Study of Zoology, Illustrated by the CrayfishAppleton, 1906 - 371 pagini |
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Pagina xii
... THORACIC STERNUM IN THE MALE AND FEMALE 136 · TRANSVERSE SECTION OF ABDOMEN 142 99 99 99 88888 36 . 99 99 37 . ABDOMINAL APPENDAGES • 144 " " " " 38 . CONNECTION BETWEEN THORAX AND 99 99 ABDOMEN • · · 151 39 . 99 " 9 29 40 . 99 99 ...
... THORACIC STERNUM IN THE MALE AND FEMALE 136 · TRANSVERSE SECTION OF ABDOMEN 142 99 99 99 88888 36 . 99 99 37 . ABDOMINAL APPENDAGES • 144 " " " " 38 . CONNECTION BETWEEN THORAX AND 99 99 ABDOMEN • · · 151 39 . 99 " 9 29 40 . 99 99 ...
Pagina 5
... points ; but the gills and the abdominal appendages present differences ; and the last thoracic somite is united with the rest in the lobster . ( See Chap . V. ) 66 cray- general hue may be red or blue . COMMON KNOWLEDGE OF THE CRAYFISH .
... points ; but the gills and the abdominal appendages present differences ; and the last thoracic somite is united with the rest in the lobster . ( See Chap . V. ) 66 cray- general hue may be red or blue . COMMON KNOWLEDGE OF THE CRAYFISH .
Pagina 21
... thoracic somite ; XVI . , sternum of the second abdominal somite . In the male , the 9th to the 14th and the 16th to the 19th appendages are removed on the animal's left side : in the female , the antenna ( with the exception of its ...
... thoracic somite ; XVI . , sternum of the second abdominal somite . In the male , the 9th to the 14th and the 16th to the 19th appendages are removed on the animal's left side : in the female , the antenna ( with the exception of its ...
Pagina 22
... thoracic limbs ; lays hold of anything to fix itself , or to assist in climbing , by the two chelate anterior pairs of these limbs , which are also employed in tearing the food seized by the forceps and conveying it to the mouth ; while ...
... thoracic limbs ; lays hold of anything to fix itself , or to assist in climbing , by the two chelate anterior pairs of these limbs , which are also employed in tearing the food seized by the forceps and conveying it to the mouth ; while ...
Pagina 23
... thoracic legs ; and hence , for distinction's sake , they are called outer foot- jaws , or external maxillipedes . If the head of a stout pin is pushed between these external maxillipedes , it will be found that it passes without any ...
... thoracic legs ; and hence , for distinction's sake , they are called outer foot- jaws , or external maxillipedes . If the head of a stout pin is pushed between these external maxillipedes , it will be found that it passes without any ...
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