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Show 804 MR. E. A. SMITH ON MARINE SHELLS [Nov. 5, and median wing-coverts like the back, the remainder, as well as quills, dark brown, with slightly paler edges ; the primaries rufous for the greater portion of their length, this red colour concealed when the wing is shut; tail-feathers black, edged with dull violet-blue; sides of face and entire under surface of body glossy violet-blue, a little duller than the upper surface; under wing-coverts like the breast; quills dusky brown below, the inner webs broadly rufous for a great portion of'their extent. Total length 7*5 inches, culmen 0*6, wing 3*5, tail 3*3, tarsus 0*75. (Mus. Berol.) Hab. Congo district. 6. On a Collection of Marine Shells from the Andaman Islands. By E D G A R A. S M I T H , F.Z.S., Zoological Department, British Museum. [Received August 1G, 1878.] (Plate L.) The shells treated upon in this paper form part of a series recently presented to the British Museum by Capt. L. Worthington Wilmer, by whom they were dredged whilst stationed at the Audaman Islands. All, with one or two exceptions, were obtained at the depth of a few fathoms off Port Blair. The collection contains about half a dozen new forms, the most interesting of which is a remarkable shell which I have provisionally located in the genus Fusus. After each species I have quoted the locality first assigned to it, and others have been added on the authority of specimens in the Museum, in order to give at a glance the known geographical distribution, which is always interesting, and calculated to assist materially in the identification of the various forms. 1. CONUS ANDAMANENSIS. (Plate L. figs. 1, 1 a.) Shell subcylindrical, with somewhat convex lateral outlines, pale pinkish white, marked irregularly with small brown spots and lines, and covered with a very thin, smooth, greyish epidermis : spire elevated concave, composed of ten whorls; the two nuclear ones subgiobose, semidiaphanous, smooth, the four following slightly turreted, and the rest obliquely planulated, spirally sculptured with two to three fine revolving striae; the markings on the spire are in the form of short brown lines following a radiating direction (that is, across the whorls) : the last whorl has the upper angle rather obtuse, and is sulcated at the base with about twelve transverse grooves. Aperture rather narrowed above, and a little widened towards the base, white within. Lip thin, with a small sinuation at the upper extremity. Length 22 mill., diam. 11. This pretty little species, which I am unable to place as the young state of any larger form, is remarkable on account of the fine brown dots or lines, which are irregularly scattered over its surface of a |