Intergradation with nevadensis is indicated by several specimens.
Intergradation with fallenda is shown by several specimens.
The specific characters are derived from the opercular valves, which present well defined distinctions, found by me constant in several specimens of both species.
Several specimens of this manufacture are in the South Kensington Museum; among these may be noted-- No.
Several specimens of the 14th and 15th centuries, the last period of the Moorish domination, exist in Spain.
Several specimens may be seen at the Museo Arqueologico, Madrid, which are 15 or 19 inches long.
Several specimens of living coral were found attached to the copper sheathing, that which I received being the largest.
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