U.S. NATIONAL MUSEUM 



BULLETIN 291. PLATE 8 



A^'^. 



i 



Balhyteulhis bacidifera, a, b, f, holotype, and c, d, e, paratype, females, 37 mm ML, 

 Elt. 34: A, Brachial crown with buccal membrane expanded; b, right Arm I; c, upper 

 beak; d, lower beak; e, radula; f, brachial crown showing connectives of the buccal 

 membrane. 



