Tl. 38 



J-K Billfolds Lilh Boston 



1 Acanthias Am en c anus. Surer 

 l a teeth,. 



2 Scynvrms lrmprrm.a..Oefa/- 

 2. a teethmlioth. jaws. 



3 Zyfiaena malleus. Va.1. 

 3 a head, beneath.. 



4 Petromyzon Americanos . Zesuew 



4 a mouth.. 4 i central teeth. 



