U. S. NATIONAL MUSEUM 



PROCEEDINGS, VO^ 83 PLATE 7 



SOOyU. 

 PARASITES OF GALVESTON BAY FISHES. 

 Tentacularia lepida: 1, Removed from cyst; 2, enlarged to show course of proboscis sheaths; 3, Portion of 

 pars vaginalis, much enlarged to show granular bodies; 4, opposite views of one whorl of l^ofso" Pro- 

 boscis; 5. contractile bulbs (p. r., proboscis letractors); 6, cross sections through contractile bulbs at 

 levels indicated by A, B, and C in figure 5. 



