1873.] MR. H. ADAMS ON LAND AND MARINE 6HELLS. 207 



3£, cito crescentibus, bene discretis, supra tabulatis, ultimo ad 

 peripheriam et ad basin carinis crenulatis instructo, antice sub- 

 solutn ; umbilico amplo, pro/undo, scalariformi, costa crenulata 

 marginali et altera interiore cincto ; apertura circulari; perist. 

 obtuso. 



Diam. maj. 2|, min. 2, alt. 1| mill. 



Hab. Persian Gulf {coll. M l Andrew). 



Cyclostrema carinatum, sp. nov. (Plate XXIII. fig. 8.) 



C. testa depresso-globosa, solida, umbilicata, carinis angulatis regu- 

 lar ibus et striis radiantibus sculpta; anfr. 4, convexis, rapide 

 accrescentibus, ultimo antice dilatato ; apertura subcirculari ; 

 perist. crasso, subinterrupto . 



Diam. maj. 2\, min. 2, alt. \\ mill. 



Hab. Persian Gulf {coll. M' Andrew). 



Clanculus pusilltjs, sp. nov. (Plate XXIII. fig. 9.) 



C. testa trochiformi, solida, Kris granosis, alternis minutis, cincta, 

 interstitiis conferte oblique striata, rosea, maculis albis notata; 

 sutura canaliculata ; anfr. 6, convexis, ultimo basi convexo, liris 

 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, liris concentricis et lamellis 

 tenuibus numerosis clathrata, carinis binis nodosis ad peripheriam 

 cincta, straminea, plerumgue maculis rufis vel strigis olivaceo-fulvis 

 ornata; spira elevata, sutura subcanaliculata ; anfr. 6, convexis; 

 umbilico mediocri, profunda, costa obiusa 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 granu- 

 lata, superne leviter plicato-striata, pallide fulva, fascia fusca 

 ad peripheriam ornata, epidermide fulvida tenui induta ; spira 

 paululum elevata, sutura valde impressa ; anfr. 4, convexis, ul- 

 timo ad basin circa umbilicum obtuse angulato ; apertura pa- 

 rum obliqua, sublunari; peristomio expanso et anguste reflexo, 

 marginibus conniventibus, columellari declivi, superne dilatato, 

 patente. 



Diam. maj. 13, min. \\\, alt. 10 mill. 



Hab. Busan, near Sarawak, Borneo {coll. II. Ad.). 



