Hydatid disease, with special reference to its prevalence in Australia / by John Davies Thomas.

  • Thomas, J. Davies (John Davies), 1844-1893.
Date:
1884
Catalogue details

Licence: Public Domain Mark

Credit: Hydatid disease, with special reference to its prevalence in Australia / by John Davies Thomas. Source: Wellcome Collection.

Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.

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    PAET IL-MTUKAL HISTOEY OF TAPEWOEMS. Cestoda, Cestoidea—Tapeworms (English). Bandwurmer (German). Vers Cestoides ou Acotyles (French). This order is defined as follows by Rudolph Leuckart :— Platodes devoid of mouth and intestine, which in their typical forms, undergo generative changes, though budding from an usually pear-shaped Nurse, to which the buds remain attached for a longer or shorter time, so as to form a band-like colony Fig. 1.—Stages of development of a Tape-worm (Cysticercus). a. Part of the Tapeworm colony (Strobila). b. Single joint (Proglottis). c. Egg (early stage). d. Egg containing Six-hooked embryo. e. Tapeworm head (Scolex). /. Bladder-worm or measle (Cystic stage). (Strobila). The sexual animals (Proglottides) resulting from this process of gemmation, increase in size and degree of development, the farther they become removed from their place of origin, and this separation occurs by the continuous formation of new prog- lottides (or joints) by the Nurse (or Head). The joints, as a rule, present no marked differences from one another, save in degree of development, or ripeness. The so-called Nurse known also as the Head (Scolex; Amme) is provided with two or four suckers, and very commonly also with an apparatus of curved claw- like hooks.