42 PIIOCTD.E. 



Coast of Europe. lie d'Oleron, Mus. Paris ; Kiver Orwell, SOtli June, 

 1847, Mus. Ipswich. 



Very young, grey, without spots when wet. Called Blue-haclcs in 

 NewfouncUaud. 



a. Skin, stuiFed, of adult male. 

 h. Skin, stuflcd, of adult male. 



c. Skin, stuffed, of adult female. 



d. Skin, stuffed, of half-grown young. 



riioca leucopla, Thienem. Bemerk. t. 13, 1824. 

 Phoca mitrata, Milbert, in Cuv. Oss. Foss. \. 210. 



a. Skidl of adult. Greenland. Crowns worn ; the roots of the 

 1st, 2nd, 3rd, and 4th rather enlarged, oblong club-shaped, rather 

 elongate ; the root of the 5th grinder compressed, of the left side 

 simple, of the right partially divided into two short roots continued 

 in grooves on each side. Specimen No. ^ described Proc. Zool. Soc. 

 1849, 92. 



h. The skidl of an adult or aged specimen. Greenland. The 

 crowns plaited ; the roots of all the grinders enlarged and short, 

 club-shaped and simjile, separated from the crown by a narrow 

 collar. Specimen No. \ described P. Z. S. 1849, 92. 



e. Skull of an aged specimen. Greenland. The crowns plaited 

 and tubercular, the roots of the grinders rather enlarged ; the roots 

 of the 3rd grinder rather comjiressed, simple, with a groove on the 

 outer side of the 4th and 5th grinders, scarcely enlarged, and divided 

 into two distinct diverging roots. Specimen No. 3 described P.Z.IS. 

 1849, 92. 



d. Skull, without lower jaw, of nearly adult. Greenland. Want- 

 ing the grinders ; but the cavity for the grinders shows that the 4th 

 grinder on both sides had a short clavate root, with a slight central 

 groove on the outer side, and the 5th grinder on each side had two 

 separate roots. Specimen No. 5 described P. Z. S. 1849, 92. 



e. Skull of a half-grown animal. Greenland. The crowns of the 

 grinders plaited and tubercular ; the 4th grinder on each side with 

 ovate, short, simple roots, and the 5th grinder with compressed, 

 truncated, simple roots ; the grinders are rather further apart than 

 in the preceding skull. Specimen No. 6 described P. Z. S. 1849, 92. 



/. Skull of a very young animal. Greenland. The crowns of the 

 grinders are very distinctly plaited; the 4th and 5th grinders of 

 both sides have two distinct roots, and the 3rd grinder has a groove 

 down the middle of the outer side. In all these skulls the grinders 

 are close together, forming a nearly continuous line. Specimen 

 No. 7 described P. Z. S. 1849, 92. 



rf. Skull of nearly adidt. Greenland. The crowns of the few 

 grinders remaining plaited ; the root of the 4th and 5th grinders of 

 the left side, as shown by the cavities, divided into two roots ; of the 

 4th grinder of the right side simple, with a slight groove on the outer 

 side ; and of the 5th grinder two-rooted, like the similar grinder on 

 the outer side. Specimen No. 4 described P. Z. S. 1849, 92. 



The specimen found in the Orwell was uniform dark grey above. 



