46 BULLETIN 122, UNITED STATES NATIONAL MUSEUM. 



Plate 7. 



Greenheart wood sill of Balboa Lock, Panama Canal, destroyed by Bankia 



(Neobankia) seteki Bartsch. 



Plate 8. 



Fig. 1. Bankia (Barikiella) mexicana Bartsch. 



2. Bankia (Nausitora) excolpa Bartsch. 



3. Bankia (Bankiella) (jonldi Bartsch. 



Plate 9. 



A number of animals of Bankia (Bankiella) gouldi Bartsch. 

 (By courtesy of the Amei'ican Railway Engineering Association.) 



Plate 10'. 



Teredo navalis Linnaeus, after Meyer and Mobius. 



Details of the posterior end of the animal. 

 (By courtesy of the American Railway Engineering Association.) 



Plate 11. 



Charleston wharf attacked by Bankia (Bankiella). gouldi Bartsch. 

 (By courtesy of the American Railway Engineering Association.) 



Plate 12. 



Four pieces of piling showing burrows of Bankia (Bankiella) gouldi Bartsch, 



from Charleston. 

 (By courtesy of the American Railway Engineering Association.) 



Plate 13. 



Two pieces of timber riddled by Bankia (Bankiella) gouldi Bartsch at Miami. 

 (By courtesy of the American Railway Engineering Association.) 



1»LATE 14. 



Pilings destroyed by Bankia (Bankiella) gouldi Bartsch at Port Tampa, Florida. 

 (By courtesy of the American Railway Engineering Association.) 



Plate 15. 



Pilings destroyed by Bankia (Bankiella) gouldi Bartsch at Port Tampa, Florida. 

 (By courtesy of the American Railway Engineering Association.) 



Plate IG. 



Pieces of wood rendered a mere sponge by Bankia (Bankiella) gouldi Bartsch 

 . , at Port Tampa, Florida. 



(By courtesy of the American Railway Engineering Association.) 



Plate 17. 

 Bankia (Nausitora) dryas Dall. 



Plate 18. 

 Bankia (Nausitora) dryas Dall. 



