. Comparative anatomy and physiology. . T\'g. 17.—Tcenia, showing tbe head and four suckers, the unjoiutei neck, and the early joints (Strobila). a thousand, and Bothriocephalus latus having, it is said, as many as 10,000 joints, and attaining to a length of twenty-five feet (Fig. 17). As these joints increase in size and approach maturity, the ova become fertilised, and commence to develop; on the joints breaking off and escaping to the exterior, the ova within are set free, and if eaten by the other host proper to the tape-worm, they go through the earlier stages of their development within
. Comparative anatomy and physiology. . T\'g. 17.—Tcenia, showing tbe head and four suckers, the unjoiutei neck, and the early joints (Strobila). a thousand, and Bothriocephalus latus having, it is said, as many as 10,000 joints, and attaining to a length of twenty-five feet (Fig. 17). As these joints increase in size and approach maturity, the ova become fertilised, and commence to develop; on the joints breaking off and escaping to the exterior, the ova within are set free, and if eaten by the other host proper to the tape-worm, they go through the earlier stages of their development within its body. In these parasites the digestive tract is altogether aborted. We have been carried away by these degraded forms from the general line of development ; we return to it, however, only again to find ourselves confronted. 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 Bell, F. J. (Francis Jeffrey), 1855-1924. London, Cassell
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Keywords: ., bookcentury1800, bookdecade1880, bookpublisherlondo, bookyear1885
