26 ODOB^ENUS ROSMARUS ATLANTIC WALRUS. 



ogist, 1871, 2550 (St. George's Bay, Newfoundland). HEUGLIN, Rei- 

 sennacli demNordpolarineer, iii, 1874, 43 (habits and distribution). 

 DEFRANCE, Bull. Soc. G6ol., 3 e s6r., ii, 1874, 164 (fossil, France). 

 GULLIVER, Proc. Zool. Soc. Lond., 1874, 580 (size of blood-corpus- 

 cles). FEILDEN, Zoologist, 3d ser., i, 1877, 360 (distribution and 

 food). VAN BENEDEN, Ann. Mus. Roy. d'Hist. Nat. Belgique, i, 

 1877, 39 (distribution, general habits, and fossil remains). RINK, 

 Danish Greenland, its People and its Products, 1877, 126. 



Tricheclms longidens, FREMERY, Bijdrag tot deNatuurk. Wetensch., vi, 1831, 

 384. 



Tricheolius virginianus, DsKAY, Nat. Hist. New York, Zool., i, 1842, 56, pi. 

 xix, figs. 1, a, 1) (fossil, Accomac Co., Va.). 



f Tricliechus duUus, STANJKIUS, Mutter's Arch, fiir Anat., 1842, 407 (without 

 locality). 



Rosmarus arcticus, LILLJEBORG, Fauna ofvers Sveriges och Norges Ryggr., 

 1874, 674. 



Rosmarm trichechus, LAMONT, Seasons with the Sea-horses, 1861, 141, 167 (two 

 plates). GILL, Johnson's New Univ. Cyclop., iii, 1877, 633. 



Rosmarus obesus, GILL, Proc. Essex Inst., v, 1866, 13 (in part only); Interna- 

 tional Exhib. 1876, Anim. Resources U. S., No. 2, 1876, 4 (Atlantic 

 Walrus; no deseription) ; Johnson's New Univ. Cycl., iii, 1877, 

 1725. PACKARD, Proc. Bost. Soc. Nat. Hist., x, 1866, 271; Mem. 

 Bost. Soc. Nat. Hist., i, 1867, 246 (fossil). LEIDY, Journ. Acacl. Nat. 

 Sci. Phila., viii, 1877, 214, pi. xxx, fig. 6 (fossil, South Carolina). 



Odobenotlierium lartetianum, GRATIOLET, Bull. Soc. G6ol. de France, 2 e se*r., 

 xv, 1858, 624, pi. v (fossil, near Paris, France). 



Odontobcenus rosmarus, SUNDEVALL, Ofver. K. Vet. Akad. Forh., 1859,441; 

 Zeitsch. Gesammt. Naturw. Halle, xv, 1860, 270. 



Odobcenus rosmarus, MALMGREN, Ofver. K. Vet. Akad. Forh. 1863, (1864), 130 

 (food and habits), 505, pi. vii (dentition) ; Wiegmann's Archiv f. 

 Naturgeschichte, 1864, 67 (translated from Ofvers. K. Vet. Akad. 

 Forh., 1863, 130 et seq.). PETERS, Monatsb. Akad. Wiss. Berlin, 1864, 

 685, pi. (dentition) ; Ann. and Mag. Nat. Hist., (3), xv, 1865, 355 

 (abstract). RINK, Danish Greenland, 1877, 430. 



f Trichecodon Imxleyi, LANKESTER, Quarter. Journ. Geol. Soc. Lond., xxi, 

 1865, 226, pis. x, xi (fossil; Red Crag, England). 



f Tricheclius manatm, FABRICIUS> Fauna Grcenl., not Rliytina gigas; see 

 BROWN, Proc. Zool. Soc. Lond., 1868, 357, 358. 



fPliocaursina, FABRICIUS, Fauna Grcenl., not Callorhinus ursinus ; see BROWN, 

 Proc. Zool. Soc. Lond., 1868, 357, 348. 



Morse; Vache marine; Cheval marine ; Bete a la grande dent (French). 



Bos marinus, RUYSCH, 1. c. 



Hvalross (Swedish and Danish). 



Havhest; Hvalruus (Norwegian). 



Morsk (Lapp). 



Wallross; Meerpferd (German). 



Walrus; Sea Cow; Sea Horse (English). 



EXTERNAL CHARACTERS. As regards general form, the head, 

 in comparison with the size of the body, is rather small, squar- 



