A Manual of the Infusoria; Including a Description of All Known Flagellate, Ciliate, and Tentaculiferous Protozoa, British and Foreign, and an Accou

PDF-file by William Saville Kent

A Manual of the Infusoria; Including a Description of All Known Flagellate, Ciliate, and Tentaculiferous Protozoa, British and Foreign, and an Accou PDF ebook download This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1880 edition. Excerpt: ... when contracted; cuticular surface finely striate transversely; pedicle short, rarely exceeding twice the length of the body, usually less. Length 1-600." Hab.—Fresh water; solitary or in small social groups. This species, as figured and briefly described by Ehrenberg, would appear to accord more nearly with the Vorticella inclinans of O. F. Miiller than the so-called V. hamata of that authority, which is apparently a free-swimming type allied to Strombidium. A form entirely agreeing with the Ehrenbergian species, as here figured and characterized in the foregoing diagnosis, has been met with on various occasions by the present author, and notably in company with Vorticella alba attached to Chara and confervoid growths obtained from an aquarium of some years' standing in the South Kensington Biological Laboratory, during the months of January and February 1880. The contour of this animalcule, with its rigidly extended pedicle and obliquely set, gibbously ovate body, corresponds in a remarkable manner with the spore-receptacle, theca or sporangium, of a Hypnum or other moss form. Vorticella spectabilis, S. K. Pl. XXXIV. Fig. 35, And Pl. XLIX Fig. 36. Body plastic and somewhat variable in form, elongate-conical, widest anteriorly, tapering posteriorly, nearly three times as long as broad when fully extended, subspheroidal in its contracted state; the peristome dilated and widely everted; cuticular surface finely striate transversely; parenchyma coarsely granulate, lightish brown; pedicle short and stout, rarely exceeding two or three times the length of the body, more usually of the same length or even shorter. Length 1-150." Hab.—Pond water; social. This species has been obtained by the author on one occasion only, being then...

eBook A Manual of the Infusoria; Including a Description of All Known Flagellate, Ciliate, and Tentaculiferous Protozoa, British and Foreign, and an Accou

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