LIST OF ILLUSTRATIONS. 



Pig. 1, p. 41. OdobcBnus rosmarus, skull of female in profile and lower jaw from above. 



Fig. 2, p. 42. Odohace^ms rosmarus, sknll of female from above. 



Fig. 3, p. 43. Odohcenus rosmarus, skull of female from below. 



Fig. 4, p. 93. Olaus Magnus's " Rosmarus seu Morsus ]S'orvegico8." 



Fig. 5, p. 93. Olaus Magnus's " Porous Monstrosus Oceani Germanici." 



Fig. 6, p. 94. Gesner's "Kosmams." 



Fig. 7, p. 94. Gesner's "Vacca marina" (Addenda to Icones Animal). 



Fig. 8, p. 94. Gesner's "Eosmarus" (Icones Animal., 1560). 



Fig. 9, p. 95. De Veer's "Sea Horse," 1609. 



Fig. 10, p. 96. Hessel Gerard's " "Walruss, " 1613. 



Fig. 11, p. 100. Martin's "Wall-ross," 1765. 



Fig. 12, p. 101. Buffon's " Le Morse," 1765. 



Fig. 13, p. 153. Odobcenus ohesus, three views of head. 



Fig. 14, p. 156. Odobacenus obesus, skuU in profile. 



Fig. 15, p. 157. Odobcenus rosmarus, skull in profile. 



Fig. 16, p. 158. Odobcenus rosm,arus, skull from front. 



Fig. 17, p. 158. Odobcenus obesus, skull from front. 



Fig. 18, p. 159. Odobcenus rosmarus, occipital view of skull. 



Fig. 19, p. 159. Odobcenus obesus, occipital view of skull. 



Fig. 20, p. 160. Odabcenus rosmarus. skull from above. 



Fig. 21, p. 161. Odobcenus obesus, skull from above. 



Fig. 22, p. 162. Odobcenus obesus, young skull from above. 



Fig. 23, p. 162. Odobcenus rosmarus, young skull from above. 



Fig. 24, p. 163. Odobcenus obesus, young skull from front. 



Fig. 25, p. 163. Odobcenus rosmarus, young skull from front. 



Fig. 26, p. 164. Odobcenus rostnarus, skull from below. 



Fig. 27, p. 165. Odobcenus obesus, skull from below. 



Fig. 28, p. 166. Odobcenus rosmarus, lower jaw from above. 



Fig. 29, p. 166. Odobcetius obesus, lower jaw from above. 



Fig. 30, p. 167. Odobcenus rosmarus, lower jaw from side. 



Fig. 31, p. 167. Odobcenus obesus, lower jaw from side. 



Fig. 32, p. 168. odobcenus rosmarus, lower jaw of young from above. 



Fig. 33, p. 168. Odobcenus obesus, lower jaw of young from above. 



Fig. 34, p. 169. Odobcenus rosmarus, lower jaw of young from side. 



Fig. 35, p. 169. Odobcenus obesus, lower jaw of young from side. 



Fig. 36, p. 173. Odobcenus obesus. Cook's figure of the animal. 



Fig. 37, p. 259. Eumetopias stelleri, figures of animal 



Fig. 38, p. 317. Callorhinus ursinus, figures of animal. 



Fig. 39, p. 321. Callorhinus ursinus, skull of female in profile. 



Fig. 40, p. 321. Callorhinus ursinus, skull of female from above. 



Fig. 41, p 322. Callorhinus ursinus, skull of female lower jjrw. 



Fig. 42, p. 322. Callorhinus ursinus, skuU of female from below. 



Fig. 43, p. 563. Phoea vitulina, animal. 



Fig. 44, p. 580. " Halichoerus antarcticus," Peale, skuU in profile. 



Fig. 45, p. 580. '' Halichcerus antarcticus," Peale, skull from above. 



Fig. 46, p. 581. " Halichoerus antarcticus," Peale, skull from below. 



Fig. 47, p. 582. " Halichcerus antarcticus," Peale, lower jaw. 



Fig. 48, p. 583. " Halicyon richardsi," Gray, skull in profile. 



Fig. 49, p. 601. Phoca foetida, animal. 



XV 



