"They (a Russian hunting vessel under Studenzov in 1758) landed on Behring Island to kill sea-cows, as all vessels are accustomed to do." (ibid p. 45).
"After Korovin in 1762 (on Behring Island) had provided himself with a sufficient stock of the flesh and hides of the sea-cow for his boats.... he sailed on" (ibid p. 82).
In 1772 DMITRI BRAGIN wintered on Behring Island during a hunting voyage. In a journal kept at the request of Pallas, the large marine animals occurring on the island are enumerated, but not a word is said about the sea-cow (PALLAS, Neue nordische Beyträge, ii. p. 310).
SCHELECHOV passed the winter 1783-84 on Behring Island, but during the whole time he only succeeded in killing some white foxes, and in the narrative of the voyage there is not a word about the sea-cow (GRIGORI SCHELECHOV russischen Kaufmanns erste und zweite Reise, &c., St. Petersburg, 1793).
Some further accounts of the sea-cow have been obtained through the mining engineer PET. JAKOVLEV, who visited Commander's Islands in 1755 in order to investigate the occurrence of copper on Copper Island. In the account of this voyage which he gave to Pallas there is not indeed one word about the sea-cow, but in 1867 PEKARSKI published in the Memoirs of the Petersburg Academy some extracts from Jakovlev's journal, from which it appears that the sea-cow already in his time was driven away from Copper Island. Jakovlev on this account on the 27th November, 1755, laid a petition before the authorities on Kamchatka, for having the hunting of the sea-cow placed under restraint of law and the extermination of the animal thus prevented, a thoughtful act honourable to its author, which certainly ought to serve as a pattern in our times (J. FR. BRANDT, Symbolæ Sirenologicæ, Mém. de l'Acad. de St. Pétersbourg, t. xii. No. 1, 1861-68, p. 295).
In his account of Behring's voyage (1785-94) published in 1802, Sauer says, p. 181: "Sea-cows were very common on Kamchatka and the Aleutian Islands,[364] when they were first discovered, but the last was killed on Behring Island in 1768, and none has been seen since then."
On the ground of the writings of which I have given an account above, and of various pieces of information collected during this century from the Russian authorities in the region, by the skilful conservator WOSNESSENSKI, the academicians von Baer and Brandt[365] came to the conclusion that the sea-cow had scarcely been seen by Europeans before the 19th/8th November, 1741, when Steller, the day after his landing on Behring Island for the first time saw some strange animals pasturing with their heads under water on the shores of the island; and that the animal twenty-seven years afterwards, or in 1768, was completely exterminated The latter statement however is undoubtedly incorrect; for, in the course of the many inquiries I made of the natives, I obtained distinct information that living sea-cows had been seen much later. A creole (that is, the offspring of a Russian and an Aleutian), who was sixty-seven years of age, of intelligent appearance and in the full possession of his mental faculties, stated "that his father died in 1847 at the age of eighty-eight. He had come from Volhynia, his native place, to Behring Island at the age of eighteen, accordingly in 1777. The two or three first years of his stay there, i.e. till 1779 or 1780, sea-cows were still being killed as they pastured on sea-weed. The heart only was eaten, and the hide used for baydars.[366] In consequence of its thickness the hide was split in two, and the two pieces thus obtained had gone to make a baydar twenty feet long, seven and a half feet broad, and three feet deep. After that time no sea-cows had been killed."
There is evidence, however, that a sea-cow had been seen at the island still later. Two creoles, Feodor Mertchenin and Stepnoff, stated, that about twenty-five years ago at Tolstoj-mys, on the east side of the island, they had seen an animal unknown to them which was very thick before, but grew smaller behind, had small fore-feet, and appeared with a length of about fifteen feet above water, now raising itself up, now lowering itself. The animal "blew," not through blowholes, but through the mouth, which was somewhat drawn out. It was brown in colour with some lighter spots. A back fin was wanting, but when the animal raised itself it was possible, on account of its great leanness, to see its backbone projecting. I instituted a through examination of both my informants. Their accounts agreed completely, and appeared to have claims to be regarded as trustworthy. That the animal which they saw was actually a sea-cow, is clearly proved both by the description of the animal's form and way of pasturing in the water, and by the account of the way in which it breathed, its colour, and leanness. In Aüsfurliche Beschreibung von sonderbaren Meerthieren, Steller says, p. 97, "While they pasture, they raise every fourth or fifth minute their nose from the water in order to blow out air and a little water;" p. 98, "During winter they are so lean that it is possible to count their vertebræ and ribs;" and p. 54, "Some sea-cows have pretty large white spots and streaks, so that they have a spotted appearance." As these natives had no knowledge of Steller's description of the animal, it is impossible that their statement can be false. The death-year of the Rhytina race must therefore be altered at least to 1854. With reference to this point it may be remarked that many circumstances indicate that the Rhytina herds were rather driven away from the rich pastures on Behring Island than exterminated there, and that the species became extinct because in their new haunt they were unable to maintain the struggle for existence. The form of the sea-cow, varying from that of most recent animals, besides indicates that, like the long-tailed duck on Iceland, the dront on Mauritius, and the large ostrich-like birds on New Zealand, it was the last representative of an animal group destined to extinction.
Mr. OSCHE, one of the Alaska Company's skin inspectors, a native of Liffland and at present settled on Copper Island, informed me that the bones of the sea-cow also occurred on the western side of that island. On the other hand, such bones are said not to be found on the small island described farther on lying off the colony on Behring Island, although Rhytina bones are common on the neighbouring shores of the main island.
This is the scanty information I have been able to collect from the natives and others resident in the quarter regarding the animal in question. On the other hand, my endeavours to procure Rhytina bones were crowned with greater success, and I succeeded in actually bringing together a very large and fine collection of skeleton fragments.