. Bulletin - United States National Museum. Science. 122 BULLETIX 120, UNITED STATES NATIONAL, MUSEUM. diameter of resting nucleus mm.; cilia line interval, anterior mm., posterior mm. This is a very broad Zelleriella Avith nuclei much smaller than in Z. macronucleata or Z. antUliensis. One finds an occasional daugh- ter cell with narrower form and a well-defined posterior curved point. In one such individual there were three very small nuclei (fig. 87, a), apparently an abnormal conditions which might conceivably arise in one of several ways not worth discussing without
. Bulletin - United States National Museum. Science. 122 BULLETIX 120, UNITED STATES NATIONAL, MUSEUM. diameter of resting nucleus mm.; cilia line interval, anterior mm., posterior mm. This is a very broad Zelleriella Avith nuclei much smaller than in Z. macronucleata or Z. antUliensis. One finds an occasional daugh- ter cell with narrower form and a well-defined posterior curved point. In one such individual there were three very small nuclei (fig. 87, a), apparently an abnormal conditions which might conceivably arise in one of several ways not worth discussing without further data. ZELLERIELLA MICROCARYA, new species. Type.—United States National Museum Cat. No. 16485. Tlost.—Bufo lemur Cope, two abundant infections, in United States. a c Fig. S8.—Zellekiblla miceocauya, X 460 diameters : o akd c show anteriorly A portion of the linfs op insertion of cilia ; b is a daughter cell. National Museum specimens No. 27149 (the type infection) and No. 27150, each 73 mm. long, from Porto Kico, April 4, 1908; L. Stej- neger, collector. Measurements of an ordinary individual.—Length of body mm.; width of body mm.; thickness of body mm.; diameter of nucleus mm.; diameter of endospherule mm.; cilia line interval, anterior mm., posterior mm. This Zelleriella is of different form from Z. hufoxena. It is nar- rower and is evenly rounded posteriorly except in the case of the daughter cells from longitudinal fission, which in both species are wedge-shaped with a round-pointed posterior end. Like Z. hufoxena it has very small nuclei. Its nuclei are the smallest known among the binucleated Opalinids, being but little larger than the largest nuclei among the multinucleated species, as for example, Opalina 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 resemb
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