Lesser Prickly Murex, Common Murex Fragment
Phylum: Mollusca, Class: Gastropoda, Order: Neogastropoda, Family: Muricidae, Genus: Murex, Species: Murex trapa · Muricidae (Murex or Rock Snail family) · Gastropod (univalve); Fragment of a spiral, spiny shell.
Species
Murex trapa (Most likely based on visibility and spine patterns)
Shell Type
Gastropod (univalve); Fragment of a spiral, spiny shell.
Family
Muricidae (Murex or Rock Snail family)
Size
Estimated length of fragment is 0.5 to 0.75 inches. A whole shell typically ranges from 2 to 4 inches.
Color & Pattern
Shows a creamy white or pale tan base color with darker brown to blackish speckles and spots on the remaining ridges and spines. Color appears somewhat weathered or beach-worn.
Rarity
Common (as a species), though complete specimens are preferred by collectors over fragments like this one.
Habitat
Typically found in shallow subtidal waters, often on sandy or muddy bottoms where it can hunt for other mollusks.
Geographic Range
Indo-Pacific region, spanning from East Africa to the Philippines and extending toward Australia.
Description
A small fragment of a gastropod shell showing the characteristic sculpture of the Murex family. It features prominent ridges (varices) and the base of short, sharp spines. The texture is rugged and calcified, showing the typical 'spiny' aesthetic of rock snails.
Key Features
Presence of multiple varices (growth ridges) per whorl, remnants of hollow or pointed spines, and a spotted brown-on-cream color pattern.
Collector Value
Negligible ($0) due to its fragmented and worn condition. Whole, high-quality specimens of this species typically sell for $5 to $15.
Condition Notes
Poor; this is a highly damaged fragment or a specimen largely obscured by fabric. It lacks the spire and the long siphonal canal characteristic of a 'Gem' quality Murex.
Interesting Facts
Murex snails are predatory and use their radula to drill holes into the shells of other bivalves. Historically, some species in this family were used to create 'Tyrian purple' dye for royal garments.
Ecological Role
Active predator that helps control populations of clams and other small mollusks. They are an essential part of the benthic food web.
Similar Species
Murex tribulus (Caltrop Murex), which has much longer, more numerous spines, and Murex aduncospinosus.
Beach Finding Tips
Look in the drift line after storms or during low tide on sandy tropical beaches. They are often found partially buried in silty sand near seagrass beds.