. Outlines of zoology. Zoology. 242 ECHINODERMA. the mouth communicating id) with the tentacles, (b) with five radial vessels, one for each ambulacral area, (c) with a " Polian vesicle " or more than one pendent in the body ;^. h Fig. yS.—Dissection of Holoth The gut has been removed ; there is a bristle throtigh anus (a) and cloaca (r); o, mouth ; 'J\ the retracted tentacles ; ^>?-, a respiratory tree ; i>7', the ovary ; otf, the oviduct; *, a bristle at genital aperture. cavity, (d) with a " stone canal " which usually hangs freely in the body cavity, and open
. Outlines of zoology. Zoology. 242 ECHINODERMA. the mouth communicating id) with the tentacles, (b) with five radial vessels, one for each ambulacral area, (c) with a " Polian vesicle " or more than one pendent in the body ;^. h Fig. yS.—Dissection of Holoth The gut has been removed ; there is a bristle throtigh anus (a) and cloaca (r); o, mouth ; 'J\ the retracted tentacles ; ^>?-, a respiratory tree ; i>7', the ovary ; otf, the oviduct; *, a bristle at genital aperture. cavity, (d) with a " stone canal " which usually hangs freely in the body cavity, and opens into it. The radial vessels may uiia. (After HuMER.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Thomson, J. Arthur (John Arthur), 1861-1933; Newbigin, Marion I. (Marion Isabel), 1869-1934; Smith, Preserved, 1880-1941. fmo. New York, D. Appleton & Co.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
