A manual of the Infusoria : including a description of all known flagellate, ciliate, and tentaculiferous protozoa, British and foreign, and an account of the organization and the affinities of the sponges . fanimalcule apparently smooth; peristomal cilia arranged in twenty-fourcurved lines, produced from the interior towards the margin of the discLength of lorica, 1-280. Hab.—Salt water : Villefranche-sur-Mer. The above diagnosis is reproduced verbatim from Professor Fols description ofhis so-called Tintinnus ampulla, to which is herewith appended an abstract of hiselaborate description of th
A manual of the Infusoria : including a description of all known flagellate, ciliate, and tentaculiferous protozoa, British and foreign, and an account of the organization and the affinities of the sponges . fanimalcule apparently smooth; peristomal cilia arranged in twenty-fourcurved lines, produced from the interior towards the margin of the discLength of lorica, 1-280. Hab.—Salt water : Villefranche-sur-Mer. The above diagnosis is reproduced verbatim from Professor Fols description ofhis so-called Tintinnus ampulla, to which is herewith appended an abstract of hiselaborate description of the oral and cihary systems. With reference to the notched Archives des Sciences Physiques et Naturelles, torn, v., 1881. M 2 628 ORDER PERITRICHA. petaloid modification of the peristomal border, it would seem to most nearlyapproach Haeckels genus Codonella. In, however, the possession of a distmct pha-ryngeal pouch, which, in accordance with Professor Fols delineation, Woodcut,Fig. I, ph, stands out separate from the body hke the gibbous pouch or spur of afloral envelope, this type has no parallel among the entire infusorial series. ProfessorFols general account of this new type runs as follows :—. Figs, i and 2. Petalotricha ampulla, Fol sp. i. Lateral aspect, showing at//4 pharyngeal pouch, X 300. 2. Twoconjugating zooids viewed from above; or, oral aperture ; ep, raised boss or 3. Petalotricha spiralis, Fol sp., X 200. (After Professor Fol.) The superior discoidal extremity or peristome, when the animal is in a stateof perfect extension, is placed a little obliquely with relation to the aperture of thetest. The disc itself, instead of being flat or slightly convex, as is the case in theVorticellina, is hollowed out like a saucer, and the vibratile cilia, instead of forminga single row round the margin of the disc, are implanted in great number and inseveral lines over the greater part of the surface. The arrangement of these vibratilecilia is exceedingly cur
Size: 1952px × 1280px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorkentwsavillewilliamsa, bookcentury1800, bookdecade1880
