X LIST or ILLUSTRATIONS 



A FOSSIL PORPOISE FROM THE CaLVERT FORMATION OF MARYLAND 



By Remington Kellogg 



Facing page 



1. Dorsal and ventral views of skull of Zarhachis flagellator 40 



2. Lateral view of skull of Zarhachis flagellator 40 



3. Dorsal and ventral views of mandibles of Zarhachis flagellator 40 



4. Lateral view of skull of Zarhachis flagellator 40 



5. Lateral view of skull of Platanista gangetica 40 



6. Lateral view of skull of Platanista gangetica 40 



7. Views of tympanic and periotic bones 40 



8. Views of tympanic bones (1-4) and dorsal view of atlas (5) 40 



9. Bones in the manus of Zarhachis flagellator 40 



10. Vertebral column and ribs of Zarhachis flagellator 40 



11. Sternum of Zarhachis flagellator 40 



12. Views of atlas of Zarhachis flagellator 40 



1 3 . Views of dorsal vertebrae of Zarhachis flagellator 40 



14. Posterior views of dorsal vertebrae of Zarhachis flagellator 40 



15. Anterior view of fourth lumbar vertebra of Zarhachis flagellator 40 



16. Views of ribs of Zarhachis flagellator 40 



17. Views of posterior caudal vertebrae of Zarhachis flagellator 40 



18. Chevron bones and posterior caudal vertebrae 40 



Description op a new genus and species of whalebone whale from the 

 Calvert Cliffs of Maryland 



By Remington Kellogg 



1. Dorsal view of skull of Parietobalaena palvieri 14 



2. Posterior view of skull of Parietobalaena palmeri 14 



3. Lateral view of skull of Parietobalaena palmeri 14 



4. Ventral view of skull of Parietobalaena palmeri 14 



5. Views of right periotic of Parietobalaena palmeri 14 



6. Views of tympanic bones 14 



Revision of the North American wasps of the Subfamily Platy- 



gasterinae 



By Robert M. Fonts 



1. Antennae of various species of Leptacis 139 



New pearly fresh-water mussels from Mexico and Uruguay 



By William B. Marshall 



1-2. New fresh-water mollusks from Mexico and Uruguay 4 



3. New fresh-water moUusk from LTruguay 4 



Recently found Meteoric irons from Mesa Verde Park, Colorado, and 



Savannah, Tennessee 



By George P. Merrill 



1. Mesa Verde Park, Colorado, meteoric iron 4 



2-3. The Savannah, Tennessee, meteoric iron 4 



