. The Protozoa. Protozoa. THE SPOROZOA 143 Wasielewsky ('96) enumerates the following kinds: (1) Paraglyco- gen. These form the bulk of the granules in the Gregarinida; they are distinct refringent granules of variable size and are usually oval or spherical in form, consisting of a peculiar amyloid substance which Biitschli ('84) regarded as similar to amidon or glycogen. They give characteristic reactions, staining brown to violet with dilute sulphuric acid, and dissolving in potassium carbonate and strong mineral acids. (2) Carminophilous granules. These granules, which were first made out b
. The Protozoa. Protozoa. THE SPOROZOA 143 Wasielewsky ('96) enumerates the following kinds: (1) Paraglyco- gen. These form the bulk of the granules in the Gregarinida; they are distinct refringent granules of variable size and are usually oval or spherical in form, consisting of a peculiar amyloid substance which Biitschli ('84) regarded as similar to amidon or glycogen. They give characteristic reactions, staining brown to violet with dilute sulphuric acid, and dissolving in potassium carbonate and strong mineral acids. (2) Carminophilous granules. These granules, which were first made out by Schneider ('75), are less numerous than the paraglycogen granules, but like them variable in size and strongly Fig. 79. — Leptotheca agilis Dof., one of the Myxosporidiida. [Doflein.] They are easily soluble in ammonia, but are not destroyed by alcohol, embedding in paraffine, etc., and are easily stained by carmine anu many aniline colors, but not at all by haematoxylin. They consist, apparently, of albumen. (3) Fat. These granules are widely dis- tributed throughout the entire group, and have about the same appearance in all types, although they are colored differently in different species. They are soluble in alcohol, ether, and chloroform, and are stained black by osmic acid. In addition to the above gran- ules, which are found in most Sporozoa, there are others which have been found hitherto only in certain subdivisions. In the Gregarinida, pyxinine granules and protein crystals have been observed in certain species, the former by Frenzel ('85) in Pyxinia, where they appar-. 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 Calkins, Gary N. (Gary Nathan), b. 1869. New York, The Macmillan company; London, Mamcillan & co. , ltd.
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