FOSSIL REMAINS. 



479 



4. Phoca gaudini, Guiscardi. Italy, from caverns. Allied to Monachua 



(Miventcr. 



5. Phoca moeotica, Eichwald. Basin of the Black Sea. Allied to M&na- 



chus alhiventer. 



6. Phoca ambigua, H. von Meyer. Osnabruk. Tertiary. Allied to Phoca 



rltuUna. 



7. Platyphoca vulgaris, Van Beneden. An vers. Pliocene. Allied to 



Eriynathus barhatus. 



8. Callophoca obscura, Van Beneden. Anvers. Pliocene. Allied to PTioca 



gr(C7ilandica. 



9. Gryphoca similis, Van Beneden. Anvers. Pliocene. Allied to Ha- 



Uchocnts (jnjpus. 

 10. Phocanella pumila, Van Beneden. Anvers. Pliocene. Allied to Phoca 

 foetida. 

 11. Phocanella minor, Van Beneden. Anvers. Pliocene. Allied to Phoca 

 foelida. 



12. Phoca vitulinoides, Van Beneden. Anvers. Pliocene. Allied to Phoca 



vitulina. 



13. Phoca pontica, Eichwald. Basin of the Black Sea. Allied to Phoca 



vitulina. 



14. Phoca halitschensis, Blainville. Valley of the Danube. Allied to 



Phoca vitulina. 



15. Monatherium delongii, Van Beneden. Anvers. Upper Miocene. So 



far as can be judged the genus Monatherium (known only from verte- 

 brse) is allied to Monachus. 



16. Monatheriiun aberratum, Van Beneden. Anvers. Upper Miocene. 



17. Monatherium afBnis, Van Beneden. Anvers. Upper Miocene. 



18. Prophoca rousseaui. Van Beneden. Anvers. Upper Miocene. 



19. Prophoca proxima, Van Beneden. Anvers. Upper Miocene. Al- 



though the genus Prophoca is a true Phocid, its affinities with any 

 one of the existing types rather than with another are not apparent. 



It thus appears that each of the existing species is repre- 

 sented by one or more allied forms among the extinct species, 

 the greater part of the extinct forms, however, clustering about 

 the Monk Seal {Monachiis alhiventer) of the Mediterranean, and 

 the common Vituline or Harbor Seal {Phoca vitulina).* As 



* The nearest living affines of the extinct genera may be thus tabulated: 

 Extinct. Living. 



Mesotaria, represented by, or aUied to Cystophora. 



Pristiophoca, J represented bv, or alUed to Monachus. 



Palceophoca, ) 



Callophoca, represented by, or allied to Pagophilua. 



Platyphoca, represented by, or allied to Erignaihtis. 



Gryphoca, represented by, or allied to Halichcerua, 



Phocanella, represented by, or allied to " Pagomys." 



Phoca vitulinoides, represented by, or allied to Phoca vitulina, 



Monatherium, represented by, or allied to Monachus. 



Prophoca, represented by, or allied to 



