144 



H.W. PALM 



20 



Fig. 19 Heteronybelinia elongata. Scolex from Pellona elongata. Scale 

 bar=200 um. 



Fig. 20 H. elongata. Scolex from Lepturacanthus savala. Scale bar=100 

 |im. 





Fig. 21 H. elongata. Scolex from L. savala. Scale bar=100 um. 



Fig. 22 H. elongata from L. savala.. Muscular ring around tentacle 

 sheath. Scale bar=50 ujn. 



