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Show 1873.] MR. H. ADAMS ON LAND AND MARINE SHELLS. 207 3g, cito crescent ibus, bene discretis, supra tabulatis, ultimo ad peripheriam et ad basin carinis crenulatis instructo, antice umbilico amplo, profundo, sccdariformi, costa crenulato marginali et altera interiore cincto; apertura circulari; perist. obtuso. Diam. maj. 2|, min. 2, alt. 1| mill. Hab. Persian Gulf (coll. MAndrew). CYCLOSTREMA CARINATUM, sp. nov. (Plate XXIII. fig. 8.) C. testa depresso-globosa, solida, umbilicata, carinis angulatis et striis radiantibus sculpta; anfr. 4, convexis, rapide accrescentibus, ultimo antice dilatato; apertura subcirculari; perist. crasso, subinterrupto. Diam. maj. 2\, min. 2, alt. 1| mill. Hab. Persian Gulf (coll. M(Andrew). CLANCULUS PUSILLUS, sp. nov. (Plate XXIII. fig. 9.) C. testa trochiformi, solida, liris granosis, alternis minutis, interstitiis conferte oblique striata, rosea, maculis albis notata; sutura canaliculata; anfr. 6, convexis, ultimo basi convexo, granosis concentricis instructo ; umbilico crenulato, albo; apertura diagonali, subcirculari, dente columellari prominente, compresso; labro simplici, intus sulcato. Diam. 7, alt. 5 mill. Hab. New Hebrides (coll. Hargraves). MINOLIA VARIABILIS, sp. nov. (Plate XXIII. fig. 10.) M. testa umbilicata, elevato-conica, tenui, tiris concentricis et tenuibus numerosis clathrata, carinis binis nodosis ad peripheriam cincta, straminea,plerumque maculis rufis vel strigis olivaceo-fulvis ornata; spira elevata, sutura subcanaliculata; anfr. 6, convexis; umbilico mediocri, profundo, costa obtusa marginali instructo; apertura circulari; perist. subcontinuo, acuto, recto. Long. 4, diam. 3 mill. Hab. Persian Gulf (coll. M'Andrew). HELTX (FRUTICICOLA) EVERETTI, sp. nov. (Plate XXIII. fig. 11.) II. testa umbilicata, depresso-globosa, solidiuscula, sub lente granulata, superne leviter plicato-striata, pallide fulva, fascia fusca ad peripheriam ornata, epidermide fulvida tenui induta; spira paululum elevata, sutura valde impressa; anfr. 4, convexis, ultimo ad basin circa umbilicum obtuse angulato; apertura parum obliqua, sublunari; peristomio expanso et anguste reflexo, marginibus conniventibus, columellari declivi, superne dilatato, patcnte. Diam. maj. 13, min. 1L|, alt. 10 mill. Hab. Busan, near Sarawak, Borneo (coll. H. Ad.). |