1864.] DR. J. E. GRAY ON THE SPECIES OF SEALS. 33 
genus Monachus of Fleming and Pelagus of F. Cuvier, a genus which 
was one of the desiderata in the Museum Collection. 
The comparison of the skull of this animal with the skulls of the 
Seal from Madeira, which I described in the ‘ Annals and Magazine 
of Natural History’ for 1854 under the name of Heliophoca atlan- 
tica, has shown that the latter animal is the same as the Mediter- 
ranean Seal. 
The British Museum has since received from M. Verreaux a very 
good skeleton of a Seal from Algiers, under the name of Phoca le- 
porina, which is evidently the same as the Phoca albiventer of 
Cuvier (Oss. Foss. v. t. 17). 
The following synonyms will therefore have to be added to those 
which I have placed under Monachus albiventer in the Catalogue of 
Seals in the British Museum, p. 18 :— 
Heliophoca atlantica, Gray, Ann. & Mag. N. H. 1854; Arch. f. 
Nat. 1855, p. 40. 
Phoca leporina, Verreaux, not of Lepechin. 
Hab. North and south shores of the Mediterranean, tle d’Oléron, 
and Madeira. 
These facts are interesting as showing that the Seal which was for- 
merly believed to be confined to the north shore of the Mediterranean 
is also found on the southern one and on the islands of the Atlantic. 
Nilsson, in his excellent monograph on the genus, after having 
examined all the materials that he could find in the different mu- 
seums, reduced the number of species of Seals to fourteen. 
We have now in the British Museum, as by the following list 
will appear, twenty-four most distinct species, established upon the 
examination of the osteological as well as the external characters of 
the animals. 
1. Lobodon carcinophaga, Gray, Cat. p. 10. Antarctic Ocean. 
2. Stenorhynchus leptonyx, Gray, Cat. p. 13. Antarctic Ocean. 
3. Leptonyx weddellii, Gray, Cat. p. 16. Antarctic Ocean. 
4. Monachus albiventer, Gray, Cat. p. 18=Heliophoca atlan- 
tica, Gray. North and south shores of the Mediterranean; Ma- 
deira. 
Monachus? tropicalis, Gray, Cat. p. 28. Jamaica. 
. Ommatoplhoca rossii, Gray, Cat. p.19. Antarctic Ocean. 
. Callocephalus vitulinus, Gray, Cat. p. 21. North Seas. 
. Pagomys fetidus, Gray, Cat. p. 23. North Seas. 
. Halocyon richardii, Gray, P. Z. 8.1864. Vancouver’s Island. 
0. Pagophilus grenlandicus, Gray, Cat. p. 25. North Sea. 
11. Phoca barbata, Gray, Cat. p. 27. North Sea. 
12. Halicherus grypus, Gray, Cat. p. 30. North Sea. 
13. Trichechus rosmarus, Gray, Cat. p. 32. North Sea. 
14. Morunga elephantina, Gray, Cat. p. 34. Antarctic Ocean. 
15. Cystophora cristata, Gray, Cat. p. 36. North Sea. 
16. ? antillarum, Gray, Cat. p. 38. Jamaica. 
17. Arctocephalus monteriensis, Gray, P. Z. S. 1859, p. 358, t. 72. 
California. 
Proc. Zoou. Soc.—1864, No. III. 
= SO Onin or 
