MILLER AND REHN : NORTH AMERICAN MAMMALS. 195 



Halichoerus grypus (Fahricius). 



1791. Phoca grijpus Fabricius, Skriv. af naturh.-selsk., i, 



2, p. 167, pi. XIII, f. 4. 

 1841. Halichoerus grypus Nilsso:n^, Wiegmann's Arcli. f. 



Natiirg., VII, bd. i, p. 318. 

 1885. Halichoerus grypus True, Proc. U. S. nat. mus., vii 



(1884), p. 607. 1885. 

 Type locality. — Greenland. 



Genus MONACHUS Fleming. 



1822. Monachus Fleming, Phil, zool., ii, p. 187. Type. — 

 Phoca monachus Hermaxx. 



* Monachus tropicalis (Gray). 



1850. Phoca tropicalis Gray, Cat. seals Brit, mus., p. 28. 

 1866. Jlonachus frojncalis Gray, Cat. seals and whales Brit. 



mus., p. 20. 

 1885. llonachus tropicalis True, Proc. U. S. nat. mus., vii 



(1884), p. 607. 1885. 

 Type locality. — Jamaica. 



Genus CYSTOPHORA Nilsson. 



1820. Cystophora Nilssox, Skand, fauna, i, p. 382. Type. 

 Cystophora borealis Nilsson r= Phoca cristata Erxleben. 



Cystophora cristata (Erxleben). 



1777. Phoca cristata Erxlebex, Syst. regni anim., i, p. 590. 

 1841. Cystophora cristata Xilssox, Wiegmann's Arch. f. 



Naturg., VII, bd. i, p. 326. 

 1885. Cystopthora cristata True, Proc. U. S. nat. mus., vii 



'(1884), p. 608. 1885. 

 Type locality. — Southern Greenland and Newfoundland. 



