An Introduction to the Study of Zoology, Illustrated by the CrayfishAppleton, 1906 - 371 pagini |
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Pagina xi
... FEMALE VENTRAL VIEWS OF MALE AND FEMALE THE GILLS • • · • DISSECTION FROM THE DORSAL SIDE ( MALE ) · · • · • 28 28 16 6 . " 1 99 99 7 . 99 99 99 8 . 99 99 9 . 99 99 99 10 . 99 99 99 LONGITUDINAL VERTICAL SECTION OF THE ALIMENTARY CANAL ...
... FEMALE VENTRAL VIEWS OF MALE AND FEMALE THE GILLS • • · • DISSECTION FROM THE DORSAL SIDE ( MALE ) · · • · • 28 28 16 6 . " 1 99 99 7 . 99 99 99 8 . 99 99 9 . 99 99 99 10 . 99 99 99 LONGITUDINAL VERTICAL SECTION OF THE ALIMENTARY CANAL ...
Pagina xii
... FEMALE REPRODUCTIVE ORGANS 129 · • 99 99 " " 31 . MALE REPRODUCTIVE ORGANS 130 • · " " 99 32 . 99 99 STRUCTURE OF OVARY . • · 131 33 . " 9 99 99 STRUCTURE OF TESTIS 132 34 . SPERMATOZOA 134 " " 99 " " 35 . 29 99 99 THE LAST THORACIC ...
... FEMALE REPRODUCTIVE ORGANS 129 · • 99 99 " " 31 . MALE REPRODUCTIVE ORGANS 130 • · " " 99 32 . 99 99 STRUCTURE OF OVARY . • · 131 33 . " 9 99 99 STRUCTURE OF TESTIS 132 34 . SPERMATOZOA 134 " " 99 " " 35 . 29 99 99 THE LAST THORACIC ...
Pagina 7
... sets ; the jointed tail being much broader , especially in the middle , in the one set than in the other ( fig . 2 ) . The broad - tailed crayfishes are the And the latter may females , the others the males MALE AND FEMALE CRAYFISHES . 7.
... sets ; the jointed tail being much broader , especially in the middle , in the one set than in the other ( fig . 2 ) . The broad - tailed crayfishes are the And the latter may females , the others the males MALE AND FEMALE CRAYFISHES . 7.
Pagina 8
Thomas Henry Huxley. And the latter may females , the others the males . be still more easily known by the possession ... female , there are mere soft filaments in the place of the first pair of styles ( fig . 3 , B ; 15 ) . Crayfishes do ...
Thomas Henry Huxley. And the latter may females , the others the males . be still more easily known by the possession ... female , there are mere soft filaments in the place of the first pair of styles ( fig . 3 , B ; 15 ) . Crayfishes do ...
Pagina 10
... females are found to be laden with eggs , of which from one to two hundred are attached be- neath the tail , and look like a mass of minute berries ( fig . 3 , B ) . In May or June , these eggs are hatched , and give rise to minute ...
... females are found to be laden with eggs , of which from one to two hundred are attached be- neath the tail , and look like a mass of minute berries ( fig . 3 , B ) . In May or June , these eggs are hatched , and give rise to minute ...
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