76 (74) Seminal bursa opens from a long, tubelike ciliated female antrum and is surrounded by a mass of nellike 



tissue (a bursal tissue), but with no appendage (Fig. 162) 



Genus Bursosaphia. 



Figure 162. — Bursosaphia baltalimaniaformis. 



76 (74) Seminal bursa opens almost directly from the exterior without any or with an extremely short female antrum; 

 no appendage and no bursal tissue present but there may be an invaginated spermatic duct (Figs. 163, 164) . . . 

 Genus Praeaphanostoina. 



Figure 163. — Praephanostoma cftaelocaudatum. 



Figure 164. — Praeaphanostoma tulheri. 



11 (73) Rhabdites present, arranged in irregular rows; seminal vesicle and ciliated male antrum present (Fig. 165) . 

 Genus Aphanostoma. 



50 



