Complex sentence: The dorsum surface is not particularly smooth and shiny as commonly occurs in cowries, the basic color is light beige or cream, with irregular dark brown patches on the top and many light brown spots on the sides.
Split into simpler sentences: The dorsum surface is not particularly smooth and shiny as is commonly the case in cowries. The basic color is light beige or cream, with irregular dark brown patches on the top and many light brown spots on the sides.