found: Mammal sp. world:p. 326 (Odobenus rosmarus. Synonyms: arcticus, cookii, divergens, obesus, orientalis. Only species in genus Odobenus and family Odobenidae)
found: Corbet world list mamm. sp.:p. 116 (Odobenus rosmarus, Walrus)
found: Wild mamm. of N. Am., c1982:p. 762 (Odobenus rosmarus. Subspecies O. r. rosmarus, Atlantic walrus; subspecies O. r. divergens, Pacific walrus) p. 802 (Walrus, Odobenus rosmarus)
found: Walker mamm. world:v. 2, p. 1244 (Walrus, Odobenus rosmarus)
found: Hall, E.R. The mamm. of N. Am., c1981:v. 2, p. 1062 (Rosmarus rosmarus, Walrus)
found: Web. 3(morse: walrus, also morse code)