. The shell book . ules all over its uppersurface. The flat base has them enlarged to nodules as it closesin to the narrow umbilicus. The surface is china-like, the whorlspurplish, the upper edges white, and decorated with large browndots in a single row. The largest specimens are about two inchesacross. S. verrucosum, Phil., is one to two inches across, withcreamy yellow ground marked with numerous short streaks ofbrown. The umbilicus is narrow and has prominent species may be a form of 5. granulatum. West Indies. The Oriental Sun-dial Shell (S. perspectivum, Linn.) is adepressed c
. The shell book . ules all over its uppersurface. The flat base has them enlarged to nodules as it closesin to the narrow umbilicus. The surface is china-like, the whorlspurplish, the upper edges white, and decorated with large browndots in a single row. The largest specimens are about two inchesacross. S. verrucosum, Phil., is one to two inches across, withcreamy yellow ground marked with numerous short streaks ofbrown. The umbilicus is narrow and has prominent species may be a form of 5. granulatum. West Indies. The Oriental Sun-dial Shell (S. perspectivum, Linn.) is adepressed cone with angled margin and flat base. Its whorlshave a spiral depression below the sutures; this also is seen onthe basal coils, and in the broad umbilicus. Narrow ridges oneach side of the depression are marked with brown spots. Theground colour is yellowish brown or ashy purple. Cloudy obliquebands cross the median surface of the whorls. Diameter, 2 to 5inches. Indian Ocean, Pacific Ocean, China to Australia. 156. CARRIER SHELL AND SUN-DIAL SHELLS 1, 2 Carrier Shell, Xenophora cahulifera, carrying both shells and , 4 Granulated Sun-dial Shell, Solarium , 6 Perspective Sun-dial Shell, Solarium pcrspfctiwm.
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Keywords: ., bookcentury1900, bookdecade1900, bookidshellbook00r, bookyear1908
