Both shells belong to the group of marine gastropods, which are sea snails that typically possess a single spiral-shaped shell
sed on the visual characteristics, the shells in your image appear to be types of marine gastropods, likely from the families
Fasciolariidae (tulip and spindle shells) or Buccinidae (whelks)The Left Shell: This specimen shares characteristics with the Trapezium Whelk (also known as the Striped Fox Conch or Fasciolaria trapezium). These are thick, heavy seashells known for their reddish-brown and cream horizontal stripes and distinctive spiral ridge
The Right Shell: This white, elongated shell resembles a Spindle Shell, possibly from the genus Fusinus or Cyrtulus. Specifically, it has the tall, tapered shape and long "tail" (siphonal canal) characteristic of the Wavy Spindle (Fusinus undatus) or the Distaff Spindle (Fusinus colus)
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