I neglected to make a full description of the color, but noted that it was stone gray, lighter above and darker below; snout nearly white. The cast, which was painted from a sketch made at Barnegat City and from pieces of skin brought to Washington, bears out this note in general, but with modifications. The color of the body as a whole is gray tinged with dull yellowish. The gray is darker on the back than on the belly, but on the latter is a large area of dark brown, reaching from near the pectoral fins to and beyond the anus, and halfway up on the sides. On this dark area are several large oval whitish blotches, some two inches in diameter. Both upper and lower jaws nearly to the angle of the mouth are cream white. On the sides and belly the gray color is speckled with black spots of about the size of a grain of wheat. The pectoral fins are dark gray above and below; the flukes were similarly colored. A comparison of the dimensions of the two specimens above described with those of European and New Zealand specimens is afforded by the following table (the measurements being reduced to percentages of the total length): _External dimensions of Ziphius cavirostris. (Reduced to percentages of the total length.)_ Column Headings: A: Newport, Rhode Island 49599 U.S.N.M., male, 1901. B: Barnegat City, New Jersey, 20971 U.S.N.M., female, 1883. C: New Brighton, New Zealand, female. D: Punta, Corsica, 1842. E: Buenos Ayres, Argentina, male, 1865. Measurements. A[a] A[b] B[b] C D E Ft. in. Ft. in. Ft. in. Ft. in. Ft. in. Ft. in. Total length 20 1 18 6 19 4 19 6 19 0 12 11½ Per cent. Per cent. Per cent. Per cent. Per cent. Per cent. Tip of snout to 69.0 74.8 67.2 [67.1] [78.5] [70.8] posterior margin of dorsal Tip of snout to 25.3 28.0 [c]20.0 [d]24.4 ... [c][25.0] axilla Tip of snout to eye [k]12.2 13.3 10.8 12.8 ... 10.9 Tip of snout to 11.2 12.6 10.4 ... ... 11.4 anterior end blowhole Length of mouth 5.4 5.9 [e] 5.0 6.4 ... [ f] 5.3 Breadth of blowhole 2.3 2.5 2.2 2.6 ... 1.2 Length of pectoral 10.8 11.7 ... [g]12.8 ... ... from head of humerus Length of pectoral [h]7.5 8.1 [hi]8.1 ... [g] 8.3 8.6 from axilla Greatest breadth of [j]2.4 [j]2.6 2.9 3.0 2.9 3.0 pectoral fin Vertical height of 4.1 4.5 5.2 3.4 3.5 4.3 dorsal fin Breadth of flukes, 26.1 28.4 28.0 31.2 ... 27.3 tip to tip fin