U- S. NATIONAL MUSEUM 



2] 



PROCEEDINGS, VOL 90 PLATE 62 



25 



19. Abothriuni rugosuvi (Batsch): Scolex and anterior end of strobila. (I'Vom Melano- 

 gr animus aeglefinus.) 



20-22. AncistTOcefhalus aluterae (Linton): 20, Scolex and first segments of an immature 

 strobila; 21, cross section showing cirrus pouch; 22, plerocercus. (From Cerata- 

 canthus schoepfi.) 

 23. Bothriocephalas sp.: Scolex and immature strobila. (From Exocoetus volitans.) 



24-28. Proteocephalus macrocephalus (Creplin): 24, Scolex; 25, scolex; 26, segment of an 

 immature strobila; 27, segments from midregion of an adult strobila; 28, ripe 

 segment. (From Anguilla rostrata.) 



29,30. Corallobothriuni fimbriatum Essex: 29, Scolex and first segments; 30, scolex, com- 

 pressed. (From Ameiurus nebulosus.) 



. GOVERNME^ 



OFFICE: 1941 



