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Show 1881.] PROF. W. U. FLOWER ON THE ELEPHANT SEAL. 145 a common dark stripe edged externally with whitish (at least on the fore wing, where the costa is suffused with whitish between the stripe and the apex) extends from the costa of the fore wings to the inner margin of the hind wings at about two thirds of the length of the wing ; near the base of the fore wings is a similar stripe, more oblique, and diverging from the other, not reproduced below ; tails of the same shape as in S. brachyura, and edged with darker, as are also the fringes of the wings; a narrow pinkish line runs down the greater portion of the tail in the male ; the tails in the female are much more broadly edged with darker for two thirds of their length ; near the outer stripe of the fore wings runs a row of four small vitreous spots, edged with yellow and black, within which are two smaller detached spots in the female and one in the male; the vitreous spots are larger, and the yellow edging less distinct in the female than in the male ; hind wings with five similar but smaller spots within the stripe, placed irregularly. Underside similar, but paler; basal stripe of fore wings absent. Body extending for half the length of the hind wings in the male, and for three quarters in the female, tails not included. Antennae with very distant pectinations." EXPLANATION OF THE PLATES, PLATE XII. Fig. 1. Saturnia iole, p. 144. 2. arnobia, p. 142. 3. sciron, p. 143. 4. Castnia erycina, p. 141. PLATE XIII. Fig. 1. Saturnia (Eudcemonia) argiphontes, p. 144. 2. sergestus, p. 143. 3. hyperbius, p. 143. 3. On the Elephant Seal, Macrorhinus leoninus (Linn.). By WILLIAM H E N R Y FLOWER, LL.D., F.R.S., P.Z.S., &c [Keceived January 4, 1881.] The Museum of the Royal College of Surgeons of England has lately received from the Falkland Islands a very fine skull of an adult Elephant Seal. As this is a larger specimen than any with which I am acquainted, I have thought that it might interest the Fellows of the Society to see it; and I have availed myself of the opportunity afforded me by its exhibition to put together some notes regarding certain points in the structure and affinities of an animal which, notwithstanding its former abundance and wide distribution, and its great zoological interest, is still very imperfectly known anatomically, and very poorly represented in collections. Puoc. ZOOL. Soc-1881, No. X. 10 |