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Worms |
Record 76 to 100 of 142 |
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Nematode "Diagram of the structure of a male Nematode. M., mouth; OE., oesophogus; GA., nerve ring; B., bulb at lower end of fore-gut; G., mesenteron; SP., spine with sheath; A., anus; D., ejaculatory duct; VS... |
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Nemertea "Diagrammatic longitudinal section of a Nemertean (Amphiporum lactifloreus), dorsal view. p.p., Proboscis pore; b., brain giving off the lateral nerve-cords (n.); po., oesophageal pocket; p., probosci... |
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Nemertine Diagram of the organs of a Nemertine. m, mouth; div, intestinal diverticula; a, anus; ov, ovaries; n, nephridia; br, brain-lobes; ln, longitudinal ner... |
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Nemertine Diagram of the organs of a Nemertine. pr, proboscis; ps, proboscidian sheath; po, opening for proboscis.... |
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Nephridium This illustration shows a representation of the circulation of the blood, in its essential features. The arrows indicate the course of the blood. a, arteries; aur., auricle or receiving portion of the... |
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Nereis "The family Nereidae includes some elongated and distinctly annulated worms, which possess a well-developed head, furnished with tentacles and eyes, and a mouth with a proboscis, which is somet... |
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Nereis A diagram of of the nephridium of Nereis. Nereis is a genus of polychaete worms in the family Nereidae. It comprises many species, most of which are marine, including the sandworm (Nereis virens) and... |
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Oligochete Worm This illustration shows the arrangement of the nervous material in the anterior end of an Oligochete Worm, seen in profile. That part of the body wall nearest the observer is supposed to be removed. a... |
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Peripatus Capensis Peripatus capensis, a velvet worm.... |
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Phoronis "Phoronis...TR., Trunk; TE., tentacles; TU., tube." -Thomson, 1916... |
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Plathelminth "A., a minute portion of the branched excretory system of a Plathelminth, showing longitudinal duct (I), with cilia (C.), its branches (II and III), and the terminal flame-cells (IV)." -Thomson, 1916... |
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Plathelminth "B., one of the characteristic hollow flame-cells, leading into the excretory tubule (1), showing the long cili (2), the excretory globules (3), the nucleus (4), and pseudopodia-like processes (5) pas... |
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Polychaeta The Polychaeta or polychaetes are a class of annelid worms, generally marine. Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are mad... |
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Polychaeta The Polychaeta or polychaetes are a class of annelid worms, generally marine. Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are mad... |
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Polychaete "Free-living Polychaete (Nereis cultrifera)." -Thomson, 1916... |
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Polygordius "Development of Polygordius. a., Mother sperm cell; b., c., sperm morulae; d., spermatosoa. 1. Ovum with large nucleus; 2. two-cell stage; 3. four-cell stage; 4. blastosphere; 5. gastrula; ac., archen... |
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Polygordius "Diagrams of stages in the metamorphosis of Polygordius, a primitive annelid. Ectoderm throughout is represented as nucleated without cell boundaries; the entoderm has the cell-boundaries shown, and t... |
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Polymoë "Elytrum of Polymoë, a polychaetous annelid, bearing fimbriae, viewed from above." -Whitney, 1911... |
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Ptychodera Flava "Ptychodera flava (New Caledonia), from above; about life size." — The Encyclopedia Britannica, 1910... |
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Rotifers The rotifers or wheel-animalcules are relatively small and beautiful organisms, rarely ever longer that a third of an inch. The rotifers make up a phylum of microscopic and near-microscopic pseudocoe... |
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Roundworm In the Trichina, a parasitic roundworm, the bodies of several animals, particularly the rat, are host for developing eggs. If the rat is eaten by a carnivorous animal, these excessively small young ar... |
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Scale Worm Nervous System "Esophageal Ring. Anterior end of nervous system of Polynoë, a polychaetous annelid, showing, a, cerebral ganglia, connected by the esophageal ring, b, with the ventral series of ganglia, c." -Wh... |
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Serpula "Serpula, a genus of Polychaete worms of the family Serpulidae, whose members construct coiled calcareous tbes of a whitish color, which are attached to stones or shells."—Finley, 1917... |
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Spoon Worm Echiurus gaertneri is a species of spoon worm considered annelids, though they are not segmented.... |
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Stenostoma In this Turbellarian the digestive tract (d.t.) is a blind sac. st., boundary of stomodaeum and mesenteron; c, cilia; g, ganglion (brain); g', ganglion of a new individual which is being formed by fis... |
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