Calliostoma granulatum is a species of marine gastropod mollusk belonging to the family Calliostomatidae. This species is commonly found in the Mediterranean Sea, including the waters off the coast of the Comunidad Valenciana.

Characteristics:

• Shell: The shell of Calliostoma granulatum is distinctively conical and features a granular texture, which is the origin of its name. It is usually brightly colored, ranging from hues of pink and orange to purple and brown. The shell is typically adorned with spirally arranged nodules or granules, giving it a textured appearance.
• Size: The shell size can vary, but it typically measures between 20 to 40 millimeters in height.
• Habitat: This species is often found in rocky substrates or among seagrass beds, at depths ranging from shallow coastal waters to deeper offshore zones.
• Diet: Calliostoma granulatum primarily feeds on algae and detritus, using its radula, a specialized feeding organ, to scrape food particles off surfaces.

Local Significance:

In the Comunidad Valenciana, Calliostoma granulatum is an important species for biodiversity and is appreciated for its striking shell appearance. It is a part of the rich marine fauna that attracts snorkelers and divers to the region.

The local name for Calliostoma granulatum is not widely recognized, but it may sometimes be referred to by its scientific name or simply as a type of "caracol marino" (sea snail) within local communities.