E UGLENOIDIDA , CHLOROMONADIDA 



125 



teriorly and the other usually posteriorly. Contractile vacuoles 

 and reservoir. Stigma usually absent. Paramylum bodies are, 

 as a rule, also present. Free-swimming or creeping. 



Genus Heteronema Dujardin. Body plastic, rounded or 

 elongated. Two flagella arise from the anterior end, one 

 directed forward and the other trailing. The cytostome near 

 the base of the flagella. Holozoic. 



Fig. 42 a. Astasia margaritijera. X410 (After Senn). 



b. Urceolus cyclostomus. X325 (After Stein). 



c. Peranema trichophoruni. X400. 



d. Petalomonas ervilia. X325 (After Stein). 



e. Menoidium incurvum. X 1050 (After Hall). 



f. Scytomonas pusilla. X325 (After Stein). 



g. Heteronema acus. X325 (After Stein), 

 h. Distigma proteus. X325 (After Stein). 



i. Entosiphon sulcatum. X325 (After Stein). 



j. Anisonema acinus. X300 (After Klebs). 

 k. A. truncatum. X325 (After Stein). 



1. A. emarginata. X400 (After Stokes.) 

 m. Notosolenus apocamptus. X900 (After Stokes). 



n. N. sinuatus. X450 (After Stokes). 



