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Show 626 MR. P. L. SCLATER ON THE BREEDING OF [Dec. 9, and slightly convex at the base; aperture diagonal, rhomboidal-ovate ; peristome white, right margin expanded, basal margin reflexed; columella subvertical, and triangularly expanded over the perforation. Diam. maj. 9, min. 8, alt. 11 lines. Hab. Bougainville Island, Solomon group (Brazier). A very pretty species, distinguishable from the black variety of H. meta, Pfr., by its invariably smaller size, by the presence of the straw-coloured band below the keel instead of next the suture, and by the last whorl being more distinctly keeled and less convex beneath. HELIX (RHYTIDA) BOYDI, n. sp. (Plate XLVIII. fig. 8.) Shell widely and perspectively umbilicated, discoidal, moderately solid, shining, closely plicately striated, olive-brown, ornamented with numerous dark brown, irregular, more or less interrupted stripes; spire almost flat; whorls 6, slightly convex, regularly increasing, the last rounded and a little descending ; aperture diagonal, roundly lunate; peristome simple, not expanded, margins approximating. Diam. maj. 14, min. 11, alt. 5 lines. Hab. Recherche Island, San Christoval, Solomon group. I dedicate this fine shell to the memory of the late Benjamin Boyd, Esq., who visited the Solomon Islands in his yacht 'The Wanderer,' and was murdered by the natives whilst pigeon-shooting at Guadalcanar. HELIX (TROCHO.MORPHA) FESSONIA, n. sp. (Plate XLVIII. % 7.) Shell narrowly umbilicated, trochiform, thin, closely irregularly plicately striated, light brown, ornamented here and there with paler diaphanous irregularly interrupted stripes; spire rather convexly conical, apex somewhat obtuse, sutures with a narrow distinct pale thread-like margin; whorls 6, a little convex, the last not descending, with an acute white keel, flattened below, pale horn-colour, with a narrow rufous band next the keel; aperture diagonal, truncately oval; peristome not continuous, the right margin arcuate, simple, the columellar margin a little thickened and slightly reflexed, not covering the umbilicus. Diam. maj. 44/, min. 4\, alt. 3 lines. Hab. Kantavu, Fiji Islands, on trees (Brazier). 5. O n the Breeding of Birds in the Gardens of the Zoological Society of London during the past Twenty Years. By P. L. S C L A T E R , M.A., Ph.D., F.R.S., Secretary to the Society. On the 10th of December last I had the honour of submitting to the Meeting a list of the species of Mammals that had bred in the |