38 {33) Male antrum, penis, and seminal vesicle all lacking; a false seminal vesicle present at the posterior end of the 

 body (Fig. 74) Genus Simplicomorpha. 



Figure 74. — SimpUcomorpha gigantorhabditls. 



38 (33) Male antrum present (Figs. 75, 76) 



.39 



Figure 75. — Kuma monogonophora^ dorsal view of posterior end. 



Figure 76. — Parahaptoposthia avesicula, sagittal section of posterior end. 



39 (38) Semiglobular caudal organ present, consisting of a ciliated inpocketing of the terminal end of the body which 



is surrounded by and into which open gland cells containing pear-shaped droplets of secretion (Fig. 77) 



Genus Adenocauda. 



Figure 77. — Adenocauda helgolandica. 



39 (38) Caudal organ lacking 40 



27 



