. The Cambridge natural history. Zoology. CILIATA 155 Bursaria; the cell is a half ellipse, something like a common twin tobacco-pouch when closed: a deep depression thus occupies the whole ventral surface, and opens by a wide slit extending along the anterior end. The peristomial area occupies the dorsal side of the pocket so formed, and the mouth is in the hinder left- hand corner. Blepharisma sp. is parasitic in the Heliozoon Raphidiophrys viridis (Fig. 20, 1, p. 74). Among Oligotrichaceae, Halteria, common among the debris at the bottom of pools in woods containing dead leaves, is remarkab
. The Cambridge natural history. Zoology. CILIATA 155 Bursaria; the cell is a half ellipse, something like a common twin tobacco-pouch when closed: a deep depression thus occupies the whole ventral surface, and opens by a wide slit extending along the anterior end. The peristomial area occupies the dorsal side of the pocket so formed, and the mouth is in the hinder left- hand corner. Blepharisma sp. is parasitic in the Heliozoon Raphidiophrys viridis (Fig. 20, 1, p. 74). Among Oligotrichaceae, Halteria, common among the debris at the bottom of pools in woods containing dead leaves, is remarkable for an equatorial girdle of very long fine setae, and. Fig. 58.âCaenmnorpha uniserialis. crh. Zone of cirrhi; , cilia of tail; , contractile vacuole ; , ciliary wreath ; g, granular aggregate; m, zone of membranellae ; N, meganncleus; n, micronuclens; oe, pharynx; t, tail-spine; i^, accessory spine; , undulating membrane; â », vacuole; z, precaudal process. (After Levander.) for its rapid erratic darting movements, alternating with a graceful bird-like hover. The Tintinnidae are mostly mariae, pelagic, with the general look of a stalkless Vorticella ; some have a latticed chitinous shell.^ Among Peritrichaceae, Vorticella (Fig. 60) and its allies have long been known as Bell-animalcules to every student of pond-life. The body has indeed the form of an inverted bell, closed at its mouth by the " peristome," or oral disc; this is a short, inverted 1 Torquaiella typica, described by Lankester as possessing a continuous undu- lating membrane for its peristomial wreath, is identified by Biitsohli as a Strom- bidium, possessing exceptionally large 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 Harmer, S. F. (Sidney Frederic), Sir, 1862- ed; Shipley, A. E. (Arthur Evere
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
