The Encyclopedia britannica; a dictionary of arts, sciences, and general literatureWith new maps, and original American articles by eminent writersWith American revisions and additions, bringing each volume up to date . e left side of theurochord. The anus opensventrally on the surface ofthe body in front of the stig-mata. No reproduction bygemmation or metamorphosisis known in the is one of the most in-teresting groups of the Tuni-cala, as it shows more com-pletely than any of the restthe characters of the originalancestral forms. It has un-dergone little or no degen-eration
The Encyclopedia britannica; a dictionary of arts, sciences, and general literatureWith new maps, and original American articles by eminent writersWith American revisions and additions, bringing each volume up to date . e left side of theurochord. The anus opensventrally on the surface ofthe body in front of the stig-mata. No reproduction bygemmation or metamorphosisis known in the is one of the most in-teresting groups of the Tuni-cala, as it shows more com-pletely than any of the restthe characters of the originalancestral forms. It has un-dergone little or no degen-eration, and consequentlycorresponds more nearly tothe tailed-larval conditionthan to the adult forms ofthe other groups. The orderiT, includes a single family, the(after FolX seen from light side, magnified , all thesix times. The arrows indicate the course members of which are minuteof the water; x, lateral reticulated parts of ^^ j f^^^. shimming. TheyHaus. occur on the surface of the sea in most parts of the world. They possess the power to form Stmc-with great rapidity an enormously large investing gelatinous layer ture of(fi. 11), which cortesponds to the test of other groups. This was Appm-. Fio. 11.—OiJropIcura tophocerta m
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Keywords: ., bookcentury1800, bookdecade1890, bookidencyclopedia, bookyear1892
