U.S. NATIONAL MUSEUM 



BULLETIN 291. PLATE 2 



ri: 





■*7&5 





i; i 



■^ 



A 



1 4 



±\ 



%\ 



G H'' 



Bathyteuthis ahyssicola, a-g, female, 57 mm ML, Elt. 354; h, male: a. Open mantle cavity; 

 B, section of integumentary layers and muscle of mantle; c, nuchal cartilage; d, mantle 

 component of locking apparatus; e, funnel component of locking apparatus; f, funnel 

 organ and funnel valve; G, gladius; h, spermatophore. 



