Scientific Name: Chelidonura hirundinina
Common Name: Swallowtail headshield slug

Adult Size: 15 – 40 mm
Depth Range: 1 – 25 m
Biotope / Habitat: Sandy and silty substrates in shallow coral reefs, seagrass beds, and algal mats — mostly active at night
Diet: Specialized predator of small flatworms, locating them with highly sensitive chemosensory organs
Reproduction: Hermaphroditic; reciprocal mating and eggs laid in long, gelatinous strings in protected areas
Fun Fact: Chelidonura hirundinina has a distinct forked tail, resembling a swallow's tail, making it easy to spot among the sand and algae.

This elegant headshield slug is known for its sleek black body with electric blue stripes and its distinctive forked tail. With exceptional chemosensory abilities, it glides over sandy substrates in search of tiny prey.