Scuba Journal Magazine

Marine Life / Crustaceans

Sawblade shrimp

Tozeuma armatum

Sawblade shrimp
Kingdom
Animalia
Phylum
Arthropoda
Subphylum
Crustacea
Class
Malacostraca
Order
Decapoda
Family
Hippolytidae
Genus
Tozeuma
Species
Tozeuma armatum

The sawblade shrimp (Tozeuma armatum) is a long, slender shrimp with a serrated, saw-like rostrum and back that lets it disappear among sea whips and seagrass.

Reaching around 5 cm, it is usually translucent white, pink or purple to match its host, and it aligns its body with the stem it sits on to stay invisible to predators.

Sawblade shrimp are found on sea whips, black coral and seagrass in the Philippines, and are a rewarding find for photographers who search slowly along the stems.

Photo: Dan Schofield, CC BY 4.0, via iNaturalist

Sawblade shrimp in the Wild

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