Human cestoides : an essay on the tapeworms of man : giving a full account of their nature, organization, and embryonic development, the pathological symptoms they produce, and the remedies which have proved successful in modern practice / by D.F. Weinland ; to which is added an appendix, containing a catalogue of all species of Helminthes hitherto found in man.

  • Weinland, D. F. (David Friedrich), 1829-1915.
Date:
1858
Catalogue details

Licence: Public Domain Mark

Credit: Human cestoides : an essay on the tapeworms of man : giving a full account of their nature, organization, and embryonic development, the pathological symptoms they produce, and the remedies which have proved successful in modern practice / by D.F. Weinland ; to which is added an appendix, containing a catalogue of all species of Helminthes hitherto found in man. 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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    CHAPTER I. NATURE AND ORGANIZATION OF TAPEWORMS GENERALLY. § 1. Tapeworms arc in Systematic Zoology called Ccstoidea* and considered as one of the four Orders of the Class of Helminthes. They arc easily distin- guished from the remaining three Orders, as soft, flat, tape-like, jointed worms, mostly narrower towards the head and broadening behind. § 2. The size of the different species of Cestoides (there are about two hundred described) varies much, the smallest being barely visible to the naked eye, while the largest known species, the Tccnia expansa of the sheep, reaches sometimes a length of one hun- dred feet, and another, the Tccnia plicata of the horse, a breadth of nearly one inch. § 3. Mature Cestoides live exclusively in the intes- tinal canal of vertebrated animals. They occur in all the five Classes of the latter. Different species of Vertebrata have generally different species of these worms ; that of the horse differs from that of the ass; that of the sheep from that of the goat; that of the clog from that of the wolf, and both again from that of the fox; and that of the rat from that of the mouse. On the other hand, some Cestoidea are common to different Vertebrata. The Tccnia eoopansa is found in a * From Kearos, girdle of Venus. This name dates from C. A.. Rudolphi. The Greeks called the tapeworm of man eX/xivs TrXarela, broad Helminth.