The third individual of this species was preserved in the museum at Coronado, San Diego County, which I am told is now a thing of the past. All that I have been able to learn of its history is contained in the following note from Mrs. E. S. Newcomb, who was in charge of the collection: "CORONADO, March 21, 1896. "_Dear Sir_:--I am only posted in regard to one marine turtle, which hangs in the entrance of our museum, and provokes various witty remarks from the travelling public.... This turtle was caught off Point Loma [San Diego Co.] by a fisherman, weight 800 lbs. He sold it to the market, where Prof. Ward recognized the skin as belonging to the Harp or Lute turtle, and purchased it for this museum. It has been here eight years. I am sorry my information is so meagre, but it is the best I can give you. "Yours sincerely, "(MRS.) E. S. NEWCOMB." With no material for comparison I am unable to form an opinion as to the identity or specific distinctness of the Leather-back Turtles of the Atlantic, Indian, and Pacific oceans; but Distant's photograph of an individual from South Africa[30] certainly shows a style of coloration very different from that seen in those reproduced here. A view of the superior surface of the hyoid is given (Plate XI) which makes it evident that the specimen figured by Gervais[31] was incomplete. SAN FRANCISCO, CALIFORNIA, August 4, 1905. [Footnote 30: Distant, Zoologist, 4th ser. v. 2, 1898, p. 500.] [Footnote 31: Gervais, N. Arch. Mus. v. 8, 1872, pl. VII, fig. 2.] EXPLANATION OF PLATE IX. Photograph of Leather-back Turtle captured at Santa Barbara, California, January, 1905. [Illustration: PROC. CAL. ACAD. SCI. 3^{D}. SER. ZOOL. VOL. IV. [VAN DENBURGH] PLATE IX. ] EXPLANATION OF PLATE X. Photograph of Leather-back Turtle captured at Santa Barbara, California, in July or August, 1901. [Illustration: PROC. CAL. ACAD. SCI. 3^{D}. SER. ZOOL. VOL. IV. [VAN DENBURGH] PLATE X. ] EXPLANATION OF PLATE XI. Hyoid of Leather-back Turtle captured at Santa Barbara, California, January, 1905. [Illustration: PROC. CAL. ACAD. SCI. 3^{D}. SER. ZOOL. VOL. IV. [VAN DENBURGH] PLATE XI. ] PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES THIRD SERIES ZOOLOGY VOL. IV, NO. 4[32] _Issued March 14, 1906_ [Footnote 32: NOTE.--Only a few copies of the original edition of this paper (Third Series, Vol. IV, Nos. 4 and 5, Zoology, pp. 61-67) had been distributed prior to the great fire of April 18, 1906, in which practically the entire edition was lost. To enable libraries and individuals to complete their files of the Proceedings this _exact reprint_ is issued