188 SPECIMENS OF PINNIPEDIA. 



from the other species of Phoca, and to regard it 

 as a distinct genus, Erignathus. 



1. Skull, aged. Length 9| inches, over vertex 12i inches; 



breadth, zygomatic 5^ inches, cranial 4| inches. 

 Mandible 6 inches. Crowns of teeth worn away. 



Donor — Mr Jas. Simpson. 



2. Skull, adult. Length 8| inches, over vertex 11 f inches; 



breadth, zygomatic 5 inches, cranial 4| inches. 



Mandible 5^ inches. Teeth much worn ; occipital and 

 squamous ridges. 



North Atlantic. Donor — Dr James Foulis. 



3. Skull, aged. Length 9^ inches, over vertex 121 inches; 



breadth, zygomatic 5 inches, cranial 4| inches. 

 Occipital and squamous ridges. No mandible. Teeth 

 feeble, many sockets absorbed. 

 North Atlantic. 



Purchased from Dr M'Bain's Collection. 



[Nos. 4 to 8 are from the Turner Collection.] 



4. Skull, aged. Length 9 inches, over vertex 12^ inches; 



breadth, zygomatic 5 inches ; cranial 4| inches. 

 Mandible 6 inches. Teeth worn, marked interval 

 between 4th and 5th upper post-canines. Cranium 

 with occij)ital and squamous ridges. 

 North Atlantic. 



5. Skull, aged. Length 8| inches, over vertex 12 inches. 



breadth, zygomatic 5 inches, cranial 4| inches. 

 Mandible 5f inches. Occipital and squamous ridges. 

 Alveoli absorbed. 

 North Atlantic. 



6. Skull, aged, premaxillse lost. Breadth, zygomatic 5 inches, 



cranial 4^ inches. Occipital and squamous ridges. 

 Teeth lost. No mandible. 

 North Atlantic. 



7. Skull, basi-cranial joint not closed. Length 7^ inches, 



over vertex 11| inches; breadth, zygomatic 4| 

 inches, cranial 4J inches. Tympanic bulla smooth 

 in inner half, rough in outer. Mandible 5] inches 

 long. 

 North Atlantic. Donor— Mr C. E. Smith, 1869. 



8. Skull, young, imperfect. Length .5f inches, over vertex 



