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2026 · Photo: Boaz Liebes
White-speckled headshield slug
Philippines · Indo Pacific - South China Sea
A small, elongated headshield slug (Aglajidae, formerly Chelidonura) with a thin internal shell. It hunts at night for worms. Mediterranean animals grow larger than those in the native range.
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Cylindrical body with a head shield, a rear shield and two unequal tail lobes. Velvety black or dark brown with a bluish sheen, scattered with yellow-orange spots; a white "W" mark on the front of the head.
The native Chelidonura italica is smaller and cryptically coloured, without orange spots on black.
Rocky or sandy bottoms with algal debris, low tide to 20 m. Nocturnal.
Small polychaete worms and acoel flatworms, found with sensory organs beside the mouth.