xiv CONTENTS 



phora — Holotricha — Distributional host relationships 

 and host-specificity in representative symbiotic faunules — ■ 

 General considerations — Ciliates of sea urchins — Proto- 

 zoa of termites and the roach Cryptocercus — Adaptive 

 host relationships in morphology and life history — 

 General considerations — Thigmotricha — Ptychostomidae 

 — Astomata — Conidiophrys — Apostomea — Physiological 

 host relationships illustrative of mutualism and com- 

 mensalism — Flagellates of termites and Cryptocercus — 

 Ciliates of ruminants — Literature cited 



XX. Organisms Living on and in Protozoa By Harold 



Kkby, Jr., University of California, Berkeley . . . 1009 



Epibiotic schizomycetes — Schizomycetes on Mastigo- 

 phora — Endobiotic schizomycetes — Associations of a 

 constant character — Associations of an occasional char- 

 acter- — Sphaerita and Nucleophaga — Historical account 

 and distribution — Life history and structure — Effect on 

 host — Parasites of the nucleus of Trichonympha — 

 Phycomycetes other than Sphaerita and Nucleophaga — 

 Protozoa — Phytomastigophora- — Zoomastigophora — Sar- 

 codina — Sporozoa — Ciliophora — The genus Amoeho- 

 phrya Koeppen — Metazoa — Literature cited 



Index ■ 1115 



