il (80) Male antrum lacking; a glandular organ opens at the male pore and close to this at the posterior side of the 

 penis there is a false seminal vesicle (Fig. 1 7 1 ) Genus Pseudoposlhia. 



Figure 171. — Pseudoposthia macrogonopora. 



i\ (.80) A short male antrum present; copulatory organ without a glandular organ and with the false seminal vesicle 

 at the proximal end of the penis (Fig. 172) Genus Rirnicola. 



Figure 172. — Rirnicola glaciaiis. 



82 (80) Male antrum lacking (Fig. 173); parasitic. Compare Faerlea, 84(55) 



Genus A vagina. 



Figure 173. — Avagina incola. 



82 (80) Male antrum present, although it may be very short 



.83 



53 



