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Show 1867.] MR. A. ADAMS ON NEW JAPAN SHELLS. 309 luteo-fulva cornea, politissima induta, extra marginem postice late expansa, strigis incrementi subplicata; spira minutissima, plana, sutura distincta, vertice laterali, ad \ diametri maximi posito ; anfr. 3, rapide accrescentibus, ultimo maximo, horizon-taliter compresso, peripheria rotundato; apertura subhorizon-tali, ovato-lunari, spira intus conspicua. Diam. maj. 15, min. 10 mill., epidermide exclusa. Hab. Fiji Islands (Coll. H. Adams). BULIMUS (MESEMBRINUS) GEALEI, H. Ad. (Pl. XIX. fig. 21.) B. testa subperforata, oblongo-ovata, tenui, oblicjue striata, striis spiralibus rugosis decussata, nitida, straminea, fasciis fuscis interruptisplerumque ornata ; spira conica, acutiuscula, sutura submarginata ; anfr. 6, planiusculis, ultimo spiram subajcpuante, basi rotundato ; apertura parum obliqua, ovali-oblonga ; perist. simplici, recto, margine columellari superne appresso-reflexo, perforationem fere claudente, basali arcuato. Long. 29, diam. 14 mill. Hab. Mexico. Collected by Mr. Boucard. 9. Descriptions of N e w Species of Shells from Japan. By A R T H U R ADAMS, F.L.S. &c. (Plate XIX.) 1. AGADINA GOULDI, A. Ad. (Pl. XIX. fig. 22.) A. testa vix umbilicata, helicoidea, subinflata, tenui, pellucida ,* anfr. 3|, rapide accrescentibus; apertura oblicqua, cucullata. Diam. 1| mill. Hab. Kino-Osima, in shell-sand. This species is much smaller than A. cucullata of Gould, which he states is a quarter of an inch in diameter. 2. AGADINA STIMPSONI, A. Ad. (Pl. XIX. fig. 23.) A. testa profunde umbilicata, planorboidea, depressa, tenui, albida; anfr. 3|, lente accrescentibus ; apertura obliqua, campanulata. Operculum tenuissimum, corneum, extus concavum, multispirale. Diam. 1 mill. Hab. Kino-Osima, in shell-sand. This is much more depressed and planorbular than the former, and the umbilicus is deeper and more open. MANGELIA SPLENDIDA, A. Ad. (Pl. XIX. fig. 24.) M. testa elongato-fusiformi, solidula, subpellucida, nitida, longitudinaliter plicata plicis obtusis inaqualibus, spiraliter lineata lineis elevatis subdistantibus, postice prominentibus et validioribus munita ; albida, maculis fasciisque interruptis ferrugineis ornata; spira turrita, apice submamillato, sutura im^ |