When received, the skeleton lacked the flippers and also two of the teeth. Regarding the former, Mr. Ring wrote on November 18, 1905, as follows: I wrote you that one flipper was entirely gone and the other worn down to a stump, as shown in the picture. I have interviewed the man who stripped the specimen, and he says the stump was badly crushed and broken and fears it was lost one night when the extremely high tide had turned the whale over, and only the anchors and lashings I had secured it with prevented its going out to sea. This skeleton was mounted recently and placed on exhibition in the Museum. The flippers were modeled from those of the St. George Island specimens (which were also imperfect) and from the figures of _B. arnuxii_ given by Flower. The end of the beak was also restored, and a facsimile of the teeth substituted for the real ones. This remarkable skeleton shows in a manner hitherto unapproached the great size which this genus of ziphioid whales attains, and the peculiar conformation of the body. While the vertebræ rival those of the large whalebone whales, such as the Humpbacks, in their dimensions, the head is remarkable for its small size as compared with the immense proportions of the same part in the Right whales. (Pl. 42, fig. 4.) Mr. Ring sent to the Museum three photographs of the Californian specimen above mentioned, two of which are reproduced on Pl. 42, figs. 2 and 3. Although rather indistinct, they show the general form of the body, the peculiar bulbous head, with an indication of a neck, and the long beak. DESCRIPTION OF A YOUNG BERING ISLAND SPECIMEN. Doctor Stejneger has very kindly placed in my hands his original notes on the young individual examined by him in Bering Island June 5, 1883 (Cat. No. 142,188) and they are given below in full: