. Outlines of zoology. Zoology. 166 UNSEGMENTED "; this remains quiescent, and without power of further develop- ment, unless the pig be eaten by some other Vertebrate. When man unwittingly eats " measly " pork, that is pork infested with bladder-worms, an opportunity for further. Fig. 73.—Diagram of reproductive organs in Cestode joint. —Constructed from Leuckart. ov., Ovary, with short oviduct; «/., "uterus;" t., diffuse testes ; , shell gland; , yolk gland ; , vas deferens ; v., vagina; , receptaculum seminis ; , longitudinal
. Outlines of zoology. Zoology. 166 UNSEGMENTED "; this remains quiescent, and without power of further develop- ment, unless the pig be eaten by some other Vertebrate. When man unwittingly eats " measly " pork, that is pork infested with bladder-worms, an opportunity for further. Fig. 73.—Diagram of reproductive organs in Cestode joint. —Constructed from Leuckart. ov., Ovary, with short oviduct; «/., "uterus;" t., diffuse testes ; , shell gland; , yolk gland ; , vas deferens ; v., vagina; , receptaculum seminis ; , longitudinal excretory ducts ; , transverse bridges connecting these. The dotted lines above and below represent the anterior and posterior borders of the proglottis. Note that the so-called uterus is blind; it opens to the exterior in a few tape-worms, and is perhaps the homologue of the Laurer-Stieda canal of Trematodes. development is afforded. The bladder is lost, and is of no importance, but the "head " or scolex fixes itself to the wall of the intestine. There it is copiously and richly nourished, and buds off asexually a chain of 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. Edinburgh, Glasgow and London, H. Frowde and Hodder & Stoughton
Size: 1356px × 1843px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorth, bookcentury1800, bookdecade1890, booksubjectzoology
