FLAGELLATA CLASSIFICATION 



Flagellum 1. 



(a) Xo anterior proems : often parasitic . . Oikomoxadidae 

 Oikomonas K. (Figs. 37, 2, 8); Trypanosoma Gruby (Fig. 39, a-f) ; 

 Treponema Vuill. (Fig. 39, g-i). 



(b) Anterior process unilateral or proboscidiform : cell often thecate 



BlCOECIDAE 



Bicocca Clark ; Poteriodendron St. 



(c) Anterior process a funnel, surrounding the base of the flagellum : 

 cells often thecate. 

 (i.) Funnel free .... Craspedomonadidae 



Codosiga Clark ; Monosiga CI. ; Polyoeca Kent ; Proterospongia 

 Kent ; Salpingoeca CI. 

 (ii.) Funnel not emerging from the general gelatinous investment 



Phalansteridae 



B. Flagella 2, unequal or dissimilar in function, the one sometimes short and 

 thick. 



(a) Both flagella directed forwards . . . Monadidae 

 Mono* St. ; Anthophysa Bory (Fig. 37, 13). 



(b) One flagellum, usually the longer, turned backwards. Bodonidae 

 Bodo St. (Fig. 38). 



C. Flagella 2, equal and similar 

 Amphimonas Duj. ; Diplomita K. (Fig. 37, 10) 

 (Fig. 37, 14). 



D. Flagella 3 . 

 Dallingeria K. (Fig. 37, 6) ; Costia Leclercq. 



E. Flagella 4 or more : mostly parasitic in Metazoa. 

 Trichomonas Donne ; Tetramitus Perty (Fig. 37, 7) ; Hexamitus Duj. ; 

 Lamblia Blanchard. 



F. Flagella numerous, sometimes constituting a complete ciliiform invest- 

 ment, and occasionally accompanied by an undulating membrane : 

 parasitic in Metazoa. 



(a) Flagella long : nucleus single : parasitic in insects Trichonymphidae 

 TJinenympha Leidy ; Joenia Grassi ; Pyrsonympha Leidy ; Tricho- 



nympha Leidy ; Lophomonas St. ; Maupasia Sehew. 



(b) Flagella short, ciliiform, uniformly distributed : nuclei very 

 numerous, all similar : parasitic in Amphibia . Opalinidae 

 Opalina Purkinje and Valentin (Fig. 41). 



Am phimonadidae 



Bhipidodendron St. 



Trimastigidae 

 polymastigidae 



VOLVOCACEAE 



A. Cells usually isolated, separating after fission or brood -formation. 

 Usually green (sometimes red), more rarely colourless saprophytes 



Chlamydomonadidae 

 Chlamydomonas Ehrb. ; Phacotus Perty ; Polytoma Ehrb. ; frphacrella 

 Sommerf. (Fig. 43) ; Zoochlorella. 



B. Cells multiplying in the active state by radial divisions in the same 



plane and usually incurving to form a spherical colony, united in a 

 gelatinous investment, sometimes traversed by plasmic threads 



VOLVOCIDAE 



Gonium O.F.M. ; Eudorina Ehrb. ; Pandorina Bory (Fig. 45) ; Stephano- 



sphaera Colin ; Volvox L. (Fig. 44). 



