Pl. xii. 
/ 
Wwhyyy, 
Ez by 
p., 
aS , 
e 
A 
First 
Masxlliped 
showing the. Sj 
—— 
Thelyeum 
Epistome 
Branchial Plume, in Section 
Hepomadus glacialis, Sp. Bate 
