SEALS. 37 
Ann. Lyc. N. Y. 1. t. 7; Fischer, Syn. Mam. i. 241 ; Blainv. 
Osteog. Phoca, t.5, skull, t. 9, teeth; Hamilton, t. 14. 
P. mitrata, Milbert, MS.; Cuv. Oss. Foss. v. 210. t. 18. f. 3; 
F. Cuv. Dent. Mam. 122. t. 39. t. 388; Fischer, Syn. Mam. 
241; Hamilton, Seals, t. 13. 
P. leucopla, Thienem. 102. t. 13 (young); Bull. Sci. Nat. v. 261 ; 
Fischer, Syn. 257, 675. 
Mirounga cristata, Gray, Griffith, A. K. v. 463. 
Cystophora cristata, Nilsson, Vet. Akad. Hand. 1837; Scand. 
Faun.; Wiegm. Arch. vii. 327; Gray, Proc. Zool. Soc. 1849, 
91; Cat. Ost. Coll. B. M. 32. 
Stemmatopus cristatus, F. Cuvier, Dict. Sci. Nat. xxxix. 551; 
Mem. Mus. xi. 196. t. 13. f. 3, g, h, 4. 
Stemmatopus mitratus, Gray, in J. Brookes’s Mus. Cat. 36, 1828. 
P. leonina, Linn. S. N. 1. 55. 
P. leonina, Mohr. Isl. Nat. 2; Miller, Prod. Z. Dan. vi. ; 
O. Fab. Faun. Gren. 7. 
Cystophora borealis, Ni/sson, Scand. F. 1. 383. 
P. eucullata, Bodd. Elench. 107. 
Phoca dimidiata, Cretzschmar, fide Riippell. 
Seal witha Caul, Hillis, Hudson’s Bay, 134. t. 6. f. 4. 
Klapmyds, Egede, Grenl. 46. 
Klap myssen, Egede, Grenl. 62. 
Hooded Seal, Penn. Syn. 342; Shaw, Zool. i. 262. 
Inhab. North Atlantic. Brit. Mus. 
Very young, grey, without spots when wet. Called Blue-backs 
in Newfoundland. 
a. Skin, stuffed, of adult male. 
b. Ditto ditto. 
c. Skin, stuffed, of adult female. 
d. Skin, stuffed, of half-grown young. 
Phoca leucopla, Thienem. Bemerk. t. 13, 1824. 
Phoca mitrata, Milbert in Cuv. Oss. Foss. v. 210. 
a. Skull of adult. Crowns worn, the roots of the Ist, 2nd, 
3rd and 4th rather enlarged, oblong club-shaped, rather elon- 
gate; the rvot of the 5th grinder compressed, of the left side 
simple, of the right partially divided into two short roots con- 
tinued in grooves on each side. Greenland. Specimen de- 
scribed Proc. Zool. Soc. 1849, 92. No. 1. 
b. The skull of an adult or aged specimen. Greenland. The 
crowns plaited, the roots of all the grinders enlarged and short, 
club-shaped and simple, separated from the crown by a narrow 
collar. Specimen No. | described P. Z. S. 1849. 
ce. Skull of an aged specimen. Greenland. The crowns 
plaited and tubercular, the roots of the grinders rather enlarged ; 
