ECTOPARASITIC PROTOZOA 



13 



Epizoic Protozoa 



Pyxidium cothurnoxdes Kent 

 Rhahdostyla hrevtpes C. & L. 

 Scyphidia amoehcea Grenfell 

 Spirochona elegans Swarcz. 

 Stylochona nebalina Kent 

 Vorticella campanula Ehrbg. 

 Zootlmmnmm paralitica Stein 



Class ciLiATA — Sub-class acinetaria : 

 Acineta nototiectcc C. & L. 

 Acinetides varians Swarczewsky 

 Acinet aides graiH Plate 

 Acinetopsis rara Robin 

 Anophrys echini di Mauro 

 Anoplophrya inermis Stein 

 Asellicola digitata Plate 

 Baikalodendron angustatum Swarcz. 

 Baikalophrya acanthogammari Swarcz. 

 Choanophrya infundibulifera Hartog 

 Cometodendron digitatum Swarcz. 

 Dendrocometes astaci Stein 

 Dendrocometides priscus Swarcz. 

 Dendrosomides paguri Collin 

 Discophrya longa Swarcz. 

 Discosom-a tenella Swarcz. 

 Echinophrya horrida Swarcz. 

 Ephelota trold C. & L. 

 Gorgonosonia arbuscula Swarcz. 

 Hemiophyra truncata Fraiport 

 Hypocoma acinetarum Collin 

 Lernoephrya capitata Perez 

 Ophryodendron arbietum C. & L. 

 Podophrya urrzesniowski Kent 

 Rhabdophrya triniorpha Chat. & Col. 

 Rhyncheta cyclopum Zenker 

 Stylophrya polymorpha Swarcz. 

 Thecacineta brevistyla Swarcz. 

 Trichophrya cordiformis Schwaikoff 

 Urnula epistylidis C. & L. 



Hosts 



ENTOMOSTRACA 



Aquatic insects 



Fish 



Gammarus 



CRUSTACEA 



Tadpoles 



CRUSTACEA 



Notonecta 



Gammarus 



Zoothamnium 



Ser Hilar ia 



Echinoderms 



Leeches 



Asellus 



GAMMARID^ 

 GAMMARID^ 



Cyclops 



GAMMARIDiE 



Crayfish 



GAMMARID.E 

 CRUSTACEA 



Gammarus 



GAMMARIDiE 



Gammarus 

 Sertularia 



GAMMARID^ 



Sertularia 



SUCTORIA 



Cordylophora 



HYDRAZOA 



Water beetles 



Copepods 



Cyclops 



GAMMARIDiE 

 GAMMARIDiE 



Cyclops 



Pedicles of Epistylis 



In addition to the protozoa that attach themselves to the outer 

 surfaces of aquatic organisms, there are a few which normally 

 live an ectoparasitic existence and are more or less dependent upon 

 their host for sustenance. In some cases they can live for only a 

 few hours removed from their host (Trichodina scorpence) ; in 

 others they are normally free-living forms (Prorodon teres). 



