366 MANATIDJE. 



Nordische Seekuh (Rytina), Beer, Mem. Acad. Pcteisb. 1840, 111. 



Manatus gigas, Zimmerm. Geog. ii. 426. 



M. borealis, Tiksius, Jahrb. i. 23 ; Pallas, Zool. Rosso-Asiat. i. 272. 



Manatus SteUeri, Ozeretskotvsky, Nov. Act. Ac. Petrop. xiii. t. 13. f. 

 (embryo). 



Rytina Stelleri, Illigcr, Prodr. 141 ; Besm. N. Diet. H. N. xix. 574 ; 

 Rekhb. Syn. Mamm. 15 ; Icoti. Cetac. t. 22. f. 69, from Steller ; 

 Anat. Cetac. t. 25, from Brandt ; Alex. v. Nordtnann, Beitrage zur 

 Kenntniss cles Knochenbaues der Rhytina Stelleri, Helsingfors 1861, 

 33 pp. and 5 tab. ; Act. Soc. Set. Fenn. vii. ; Arch. Naiurg. 1862, 

 153 ; Nordtnann, Paldontologie Siid-Russland\s, Helsingfors 1859-60, 

 328. 



Stellerus borealis, Desm. Mamm. 510 ; Lesson, Cetac. 88 ; Jardine, Nat. 

 Lib. viii. 307. 



Rytina borealis, F. Cuvier, Cetac. 41. 



Rityna Stelleri, Lesson, N. Reg. Anim. 155. 



Rhytina borealis, Brandt, Mem. Acad. Petrop. 1846 ; Synib. Sirenolog. 

 141. t.1-4 (skull), t. 5 (ideal figure); Rousseau, Mag. Zoo/. 1856, 199. 



Stellere, Ciivier, R. A. i. 275; Oss. Foss. v. 256. 



Whale-tailed Manate, Penn. Quad. ii. 292. 



Tnhab. Arctic Ocean. Behring's Straits. Skull (imperfect), Mus. 

 St. Petersb. 



a, b. Two ribs from Behring's Straits. Received from the Museum of 

 the Academy of Sciences, St. Petersburg. 



SteUer, who first discovered the Rytina during Behring's second 

 expedition, in 1741, when ten months were passed upon Behring's 

 Island, the only spot where this remarkable animal is known to 

 have existed in recent times, estimated its numbers as then so large 

 as to be sufficient to feed the whole population of Kamtschatka. 

 But the hunters and adventurers foUowing in SteUer's track along 

 the chain of the Aleutian Islands, who were in the habit of wintering 

 on Behring's Island, and of provisioning their ships with these 

 animals, made such havoc with them that, as we are informed by 

 Sauer, in his narrative of Behring's third expedition, which remained 

 five years in those seas, from 1789 to 1793, they were at that time 

 totally extinct, the last known individual having been killed in 1768. 

 (Beer, Mem. Acad. St. Petersb. 1840, iii. 53, quoted Nat. Hist. Eev. 

 1865, 15 ; see also Owen, Palseont. 400.) 



A skeleton, wanting the hand-bones, some of the caudal vertebrae, 

 and the epiphyses of the shoulderblades, humerus, ulna, and radius, 

 was discovered and dug up by two Aleutians and sent to the National 

 Museum of Helsingfors, where it has been described and figured by 

 Dr. Alexander von Nordmann. 



According to Nordmann, there are three skeletons of this animal 

 in Russia, — one at the Academy of Sciences at St. Petersburg, the 

 second at the Museum at Helsingfors, and the third at Moscow. 

 (See BuU. Acad. Roy. Belgique, xiii. 341, 1862.) 



The Sea-ape, Penn. Qimcl. ii. 301 (Trichecus Hydropithecus, Shaiv, 

 Zool. i. 247 ; Manatus Simia, Illir/er, Ahli. Berl. Alcad. 1813 ; M. ? 

 Hydropithecus, Fischer, Syn. 502, all from Steller), is perhaps another 

 animal of this family, if it is not a Seal ? 



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