GRAMPUS. 



123 



9. Tympano-periotic bones, pair of, articulated (G and H). 

 Tympanic length 1| inch, breadth ^ inch; periotic 

 length 1 -h inch ; stapes attached. 



10. Tympano-periotic bones, right, and the left periotic (I and 



K). Tympanic length 1^^ inch, breadth 2 inch: 

 periotic length IJ inch. 



11. Tympano-periotic bones, right, fused (L). Tympanic 



length 1| inch, breadth ^ inch; periotic length 1^ 

 inch. 



12. Stomach of Risso's Dolphin, inflated and dried. It con- 



sists of five compartments : a large (esophageal paunch 

 2 feet long ; a globular cardiac compartment lO^by 



CE, (Esophagus ; 1 to 5, compartments of stomach ; D, duodenum ; H, hepatic 

 duct ; P, pancreas ; Sp, spleen. 



