358 Ciliophora 



Fig. 7. 15. A, B. Paraisotricha minula Hsiung, dorsal and ventral sur- 

 faces; concretion-vacuole, contractile vacuole, nuclei, and cytopharynx are 

 shown; x443 (after H.). C, D. Maryna socialis Gruber, single specimen (150^ 

 long) and portion of a colony (from Kahl, after G.). E. Mycterotlirix 

 erlangeri Lauterborn, ciliate {50fi long) enclosed in lorica (after Kahl). F. 

 Spirozona caudata Kahl, specimen 80/^ long (after K.). G, H. Trichospira 

 inversa (Clapar^de and Lachmann), ventral view of ciliate 90;^ long, periph- 

 eral zone of trichocysts not shown (G), and longitudinal optical section of 

 oral region (after Kahl). I, J. Dasytricha ruminantium Schuberg: schematic 

 longitudinal section (I), showing nuclei, pharynx, cytopyge, and endoplasmic 

 fibrils (after ten Kate); surface view (J), x465 (after Becker and Talbott) 

 K. Isotriclia buhali Dogiel, from camel; x325 (after D.). L. Isotricha intes- 

 tinalis Stein, schematic sagittal section showing pharynx, nuclei, karyophore, 

 and endoplasmic fibrils (after ten Kate). 



